diff --git a/jack/src/jack_port.rs b/jack/src/jack_port.rs
index 7561c0a7..d93bb208 100644
--- a/jack/src/jack_port.rs
+++ b/jack/src/jack_port.rs
@@ -1,169 +1,151 @@
 use crate::*;
 
+#[derive(Debug)]
 pub struct JackPort<T: PortSpec> {
     /// Handle to JACK client, for receiving reconnect events.
     pub jack: Arc<RwLock<JackConnection>>,
     /// Port handle.
     pub port: Port<T>,
     /// List of ports to connect to.
-    pub connect: Vec<PortConnect>
+    pub connect: Vec<PortConnection>
 }
-pub struct PortConnect {
-    pub name:   PortConnectName,
-    pub order:  PortConnectScope,
-    pub status: Vec<(Port<Unowned>, PortConnectStatus)>,
-}
-impl PortConnect {
-    /// Connect to this exact port
-    pub fn exact (name: impl AsRef<str>) -> Self {
-        let name  = PortConnectName::Exact(name.as_ref().into());
-        Self { name, order: PortConnectScope::One, status: vec![] }
+impl<T: PortSpec> JackPort<T> {
+    pub fn connect_to_matching (&mut self) {
+        use PortConnectionName::*;
+        use PortConnectionScope::*;
+        use PortConnectionStatus::*;
+        for connect in self.connect.iter_mut() {
+            let mut status = vec![];
+            match &connect.name {
+                Exact(name) => for port in self.jack.ports(None, None, PortFlags::empty()).iter() {
+                    if port.as_str() == &**name {
+                        if let Some(port) = self.jack.port_by_name(port.as_str()) {
+                            let port_status = Self::try_both_ways(&self.jack, &port, &self.port);
+                            status.push((port, port_status));
+                            if port_status == Connected {
+                                break
+                            }
+                        }
+                    }
+                },
+                RegExp(re) => for port in self.jack.ports(Some(&re), None, PortFlags::empty()).iter() {
+                    if let Some(port) = self.jack.port_by_name(port.as_str()) {
+                        let port_status = Self::try_both_ways(&self.jack, &port, &self.port);
+                        status.push((port, port_status));
+                        if port_status == Connected && connect.scope == One {
+                            break
+                        }
+                    }
+                }
+            }
+            connect.status = status
+        }
     }
-    pub fn wildcard (name: impl AsRef<str>) -> Self {
-        let name = PortConnectName::Wildcard(name.as_ref().into());
-        Self { name, order: PortConnectScope::One, status: vec![] }
-    }
-    pub fn wildcard_all (name: impl AsRef<str>) -> Self {
-        let name = PortConnectName::Wildcard(name.as_ref().into());
-        Self { name, order: PortConnectScope::All, status: vec![] }
-    }
-    pub fn regexp (name: impl AsRef<str>) -> Self {
-        let name = PortConnectName::RegExp(name.as_ref().into());
-        Self { name, order: PortConnectScope::One, status: vec![] }
-    }
-    pub fn regexp_all (name: impl AsRef<str>) -> Self {
-        let name = PortConnectName::RegExp(name.as_ref().into());
-        Self { name, order: PortConnectScope::All, status: vec![] }
+    fn try_both_ways <A: PortSpec, B: PortSpec> (
+        jack: &impl ConnectPort, port_a: &Port<A>, port_b: &Port<B>
+    )
+        -> PortConnectionStatus
+    {
+        if let Ok(_) = jack.connect_ports(port_a, port_b) {
+            PortConnectionStatus::Connected
+        } else if let Ok(_) = jack.connect_ports(port_b, port_a) {
+            PortConnectionStatus::Connected
+        } else {
+            PortConnectionStatus::Mismatch
+        }
     }
 }
 #[derive(Clone, Debug, PartialEq)]
-pub enum PortConnectName {
-    /// Exact match
-    Exact(Arc<str>),
-    /// Match wildcard
-    Wildcard(Arc<str>),
-    /// Match regular expression
-    RegExp(Arc<str>),
+pub struct PortConnection {
+    pub name:   PortConnectionName,
+    pub scope:  PortConnectionScope,
+    pub status: Vec<(Port<Unowned>, PortConnectionStatus)>,
+}
+impl PortConnection {
+    /// Connect to this exact port
+    pub fn exact (name: impl AsRef<str>) -> Self {
+        let name = PortConnectionName::Exact(name.as_ref().into());
+        Self { name, scope: PortConnectionScope::One, status: vec![] }
+    }
+    pub fn regexp (name: impl AsRef<str>) -> Self {
+        let name = PortConnectionName::RegExp(name.as_ref().into());
+        Self { name, scope: PortConnectionScope::One, status: vec![] }
+    }
+    pub fn regexp_all (name: impl AsRef<str>) -> Self {
+        let name = PortConnectionName::RegExp(name.as_ref().into());
+        Self { name, scope: PortConnectionScope::All, status: vec![] }
+    }
+}
+#[derive(Clone, Debug, PartialEq)]
+pub enum PortConnectionName {
+    /** Exact match */ Exact(Arc<str>),
+    /** Match regular expression */ RegExp(Arc<str>),
 }
 #[derive(Clone, Copy, Debug, PartialEq)]
-pub enum PortConnectScope { One, All }
+pub enum PortConnectionScope { One, All }
 #[derive(Clone, Copy, Debug, PartialEq)]
-pub enum PortConnectStatus { Missing, Disconnected, Connected, Mismatch, }
+pub enum PortConnectionStatus { Missing, Disconnected, Connected, Mismatch, }
 
 impl<T: PortSpec> AsRef<Port<T>> for JackPort<T> {
     fn as_ref (&self) -> &Port<T> {
         &self.port
     }
 }
-impl<T: PortSpec> JackPort<T> {
-    pub fn midi_in (
-        jack: Arc<RwLock<JackConnection>>, name: impl AsRef<str>, connect: &[PortConnect]
-    ) -> Usually<JackPort<MidiIn>> {
-        let input = jack.midi_in(name)?;
-        for port in connect.iter() {
-            let port = port.as_ref();
-            if let Some(output) = jack.port_by_name(port).as_ref() {
-                jack.connect_ports(output, &input)?;
-            } else {
-                panic!("Missing MIDI output: {port}. Use jack_lsp to list all port names.");
-            }
-        }
-        Ok(JackPort { jack: jack.clone(), port: input, connect: connect.clone() })
-    }
-
-    pub fn midi_out (
-        jack: Arc<RwLock<JackConnection>>,
-        name: impl AsRef<str>,
-        connect: &[impl AsRef<str>]
-    ) -> Usually<JackPort<MidiOut>> {
-        let output = jack.midi_out(name)?;
-        for port in connect.iter() {
-            let port = port.as_ref();
-            if let Some(input) = jack.port_by_name(port).as_ref() {
-                jack.connect_ports(&output, input)?;
-            } else {
-                panic!("Missing MIDI input: {port}. Use jack_lsp to list all port names.");
-            }
-        }
-        Ok(JackPort { jack: jack.clone(), port: output, connect: connect.into() })
-    }
-
-    pub fn audio_in (
-        jack: Arc<RwLock<JackConnection>>,
-        name: impl AsRef<str>,
-        connect: &[impl AsRef<str>]
-    ) -> Usually<JackPort<AudioIn>>  {
-        let input = jack.audio_in(name)?;
-        for port in connect.iter() {
-            let port = port.as_ref();
-            if let Some(output) = jack.port_by_name(port).as_ref() {
-                jack.connect_ports(output, &input)?;
-            } else {
-                panic!("Missing MIDI output: {port}. Use jack_lsp to list all port names.");
-            }
-        }
-        Ok(JackPort { jack: jack.clone(), port: input, connect: connect.into() })
-    }
-
-    pub fn audio_out (
-        jack: Arc<RwLock<JackConnection>>,
-        name: impl AsRef<str>, 
-        connect: &[impl AsRef<str>]
-    ) -> Usually<JackPort<AudioOut>> {
-        let output = jack.audio_out(name)?;
-        for port in connect.iter() {
-            let port = port.as_ref();
-            if let Some(input) = jack.port_by_name(port).as_ref() {
-                jack.client().connect_ports(&output, input)?;
-            } else {
-                panic!("Missing MIDI input: {port}. Use jack_lsp to list all port names.");
-            }
-        }
-        Ok(JackPort { jack: jack.clone(), port: output, connect: connect.into() })
+impl JackPort<MidiIn> {
+    pub fn new (
+        jack: &Arc<RwLock<JackConnection>>, name: impl AsRef<str>, connect: &[PortConnection]
+    ) -> Usually<Self> {
+        let mut port = JackPort {
+            jack: jack.clone(),
+            port: jack.midi_in(name)?,
+            connect: connect.to_vec()
+        };
+        port.connect_to_matching();
+        Ok(port)
     }
 }
-
-
-/// This is a utility trait for things that may register or connect [Port]s.
-/// It contains shorthand methods to this purpose. It's implemented for
-/// `Arc<RwLock<JackConnection>>` for terse port registration in the
-/// `init` callback of [JackClient::activate_with].
-pub trait RegisterPort {
-    fn midi_in   (&self, name: impl AsRef<str>) -> Usually<Port<MidiIn>>;
-    fn midi_out  (&self, name: impl AsRef<str>) -> Usually<Port<MidiOut>>;
-    fn audio_in  (&self, name: impl AsRef<str>) -> Usually<Port<AudioIn>>;
-    fn audio_out (&self, name: impl AsRef<str>) -> Usually<Port<AudioOut>>;
-}
-impl RegisterPort for JackConnection {
-    fn midi_in (&self, name: impl AsRef<str>) -> Usually<Port<MidiIn>> {
-        Ok(self.client().register_port(name.as_ref(), MidiIn::default())?)
-    }
-    fn midi_out (&self, name: impl AsRef<str>) -> Usually<Port<MidiOut>> {
-        Ok(self.client().register_port(name.as_ref(), MidiOut::default())?)
-    }
-    fn audio_in (&self, name: impl AsRef<str>) -> Usually<Port<AudioIn>> {
-        Ok(self.client().register_port(name.as_ref(), AudioIn::default())?)
-    }
-    fn audio_out (&self, name: impl AsRef<str>) -> Usually<Port<AudioOut>> {
-        Ok(self.client().register_port(name.as_ref(), AudioOut::default())?)
+impl JackPort<MidiOut> {
+    pub fn new (
+        jack: &Arc<RwLock<JackConnection>>, name: impl AsRef<str>, connect: &[PortConnection]
+    ) -> Usually<Self> {
+        let mut port = Self {
+            jack: jack.clone(),
+            port: jack.midi_out(name)?,
+            connect: connect.to_vec()
+        };
+        port.connect_to_matching();
+        Ok(port)
     }
 }
-impl<T: RegisterPort> RegisterPort for Arc<RwLock<T>> {
-    fn midi_in (&self, name: impl AsRef<str>) -> Usually<Port<MidiIn>> {
-        self.read().unwrap().midi_in(name)
+impl JackPort<AudioIn> {
+    pub fn new (
+        jack: &Arc<RwLock<JackConnection>>, name: impl AsRef<str>, connect: &[PortConnection]
+    ) -> Usually<Self> {
+        let mut port = Self {
+            jack: jack.clone(),
+            port: jack.audio_in(name)?,
+            connect: connect.to_vec()
+        };
+        port.connect_to_matching();
+        Ok(port)
     }
-    fn midi_out (&self, name: impl AsRef<str>) -> Usually<Port<MidiOut>> {
-        self.read().unwrap().midi_out(name)
-    }
-    fn audio_in (&self, name: impl AsRef<str>) -> Usually<Port<AudioIn>> {
-        self.read().unwrap().audio_in(name)
-    }
-    fn audio_out (&self, name: impl AsRef<str>) -> Usually<Port<AudioOut>> {
-        self.read().unwrap().audio_out(name)
+}
+impl JackPort<AudioOut> {
+    pub fn new (
+        jack: &Arc<RwLock<JackConnection>>, name: impl AsRef<str>, connect: &[PortConnection]
+    ) -> Usually<Self> {
+        let mut port = Self {
+            jack: jack.clone(),
+            port: jack.audio_out(name)?,
+            connect: connect.to_vec()
+        };
+        port.connect_to_matching();
+        Ok(port)
     }
 }
 
 pub trait ConnectPort {
+    fn ports (&self, re_name: Option<&str>, re_type: Option<&str>, flags: PortFlags) -> Vec<String>;
     fn port_by_name (&self, name: impl AsRef<str>) -> Option<Port<Unowned>>;
     fn connect_ports <A: PortSpec, B: PortSpec> (&self, source: &Port<A>, target: &Port<B>)
         -> Usually<()>;
@@ -213,6 +195,9 @@ pub trait ConnectPort {
     }
 }
 impl ConnectPort for JackConnection {
+    fn ports (&self, re_name: Option<&str>, re_type: Option<&str>, flags: PortFlags) -> Vec<String> {
+        self.client().ports(re_name, re_type, flags)
+    }
     fn port_by_name (&self, name: impl AsRef<str>) -> Option<Port<Unowned>> {
         self.client().port_by_name(name.as_ref())
     }
@@ -223,6 +208,9 @@ impl ConnectPort for JackConnection {
     }
 }
 impl<T: ConnectPort> ConnectPort for Arc<RwLock<T>> {
+    fn ports (&self, re_name: Option<&str>, re_type: Option<&str>, flags: PortFlags) -> Vec<String> {
+        self.read().unwrap().ports(re_name, re_type, flags)
+    }
     fn port_by_name (&self, name: impl AsRef<str>) -> Option<Port<Unowned>> {
         self.read().unwrap().port_by_name(name.as_ref())
     }
@@ -233,6 +221,45 @@ impl<T: ConnectPort> ConnectPort for Arc<RwLock<T>> {
     }
 }
 
+/// This is a utility trait for things that may register or connect [Port]s.
+/// It contains shorthand methods to this purpose. It's implemented for
+/// `Arc<RwLock<JackConnection>>` for terse port registration in the
+/// `init` callback of [JackClient::activate_with].
+pub trait RegisterPort {
+    fn midi_in   (&self, name: impl AsRef<str>) -> Usually<Port<MidiIn>>;
+    fn midi_out  (&self, name: impl AsRef<str>) -> Usually<Port<MidiOut>>;
+    fn audio_in  (&self, name: impl AsRef<str>) -> Usually<Port<AudioIn>>;
+    fn audio_out (&self, name: impl AsRef<str>) -> Usually<Port<AudioOut>>;
+}
+impl RegisterPort for JackConnection {
+    fn midi_in (&self, name: impl AsRef<str>) -> Usually<Port<MidiIn>> {
+        Ok(self.client().register_port(name.as_ref(), MidiIn::default())?)
+    }
+    fn midi_out (&self, name: impl AsRef<str>) -> Usually<Port<MidiOut>> {
+        Ok(self.client().register_port(name.as_ref(), MidiOut::default())?)
+    }
+    fn audio_in (&self, name: impl AsRef<str>) -> Usually<Port<AudioIn>> {
+        Ok(self.client().register_port(name.as_ref(), AudioIn::default())?)
+    }
+    fn audio_out (&self, name: impl AsRef<str>) -> Usually<Port<AudioOut>> {
+        Ok(self.client().register_port(name.as_ref(), AudioOut::default())?)
+    }
+}
+impl<T: RegisterPort> RegisterPort for Arc<RwLock<T>> {
+    fn midi_in (&self, name: impl AsRef<str>) -> Usually<Port<MidiIn>> {
+        self.read().unwrap().midi_in(name)
+    }
+    fn midi_out (&self, name: impl AsRef<str>) -> Usually<Port<MidiOut>> {
+        self.read().unwrap().midi_out(name)
+    }
+    fn audio_in (&self, name: impl AsRef<str>) -> Usually<Port<AudioIn>> {
+        self.read().unwrap().audio_in(name)
+    }
+    fn audio_out (&self, name: impl AsRef<str>) -> Usually<Port<AudioOut>> {
+        self.read().unwrap().audio_out(name)
+    }
+}
+
 ///// Collection of JACK ports as [AudioIn]/[AudioOut]/[MidiIn]/[MidiOut].
 //#[derive(Default, Debug)]
 //pub struct JackPorts {
diff --git a/jack/src/lib.rs b/jack/src/lib.rs
index e27a5e36..b48668fe 100644
--- a/jack/src/lib.rs
+++ b/jack/src/lib.rs
@@ -6,7 +6,8 @@ pub(crate) use ::jack::{
     contrib::ClosureProcessHandler, NotificationHandler,
     Client, AsyncClient, ClientOptions, ClientStatus,
     ProcessScope, Control, Frames,
-    Port, PortId, PortSpec, Unowned, MidiIn, MidiOut, AudioIn, AudioOut,
+    Port, PortId, PortSpec, PortFlags,
+    Unowned, MidiIn, MidiOut, AudioIn, AudioOut,
 };
 
 mod from_jack;    pub use self::from_jack::*;
diff --git a/midi/src/midi_in.rs b/midi/src/midi_in.rs
index 4cf8d1f4..30e24c30 100644
--- a/midi/src/midi_in.rs
+++ b/midi/src/midi_in.rs
@@ -2,8 +2,8 @@ use crate::*;
 
 /// Trait for thing that may receive MIDI.
 pub trait HasMidiIns {
-    fn midi_ins (&self) -> &Vec<Port<MidiIn>>;
-    fn midi_ins_mut (&mut self) -> &mut Vec<Port<MidiIn>>;
+    fn midi_ins (&self) -> &Vec<JackPort<MidiIn>>;
+    fn midi_ins_mut (&mut self) -> &mut Vec<JackPort<MidiIn>>;
     fn has_midi_ins (&self) -> bool {
         !self.midi_ins().is_empty()
     }
@@ -27,7 +27,7 @@ pub trait MidiRecordApi: HasClock + HasPlayPhrase + HasMidiIns {
         let notes_in = self.notes_in().clone();
         let monitoring = self.monitoring();
         for input in self.midi_ins_mut().iter() {
-            for (sample, event, bytes) in parse_midi_input(input.iter(scope)) {
+            for (sample, event, bytes) in parse_midi_input(input.port.iter(scope)) {
                 if let LiveEvent::Midi { message, .. } = event {
                     if monitoring {
                         midi_buf[sample].push(bytes.to_vec());
@@ -67,7 +67,7 @@ pub trait MidiRecordApi: HasClock + HasPlayPhrase + HasMidiIns {
             let mut phrase = phrase.write().unwrap();
             let length     = phrase.length;
             for input in self.midi_ins_mut().iter() {
-                for (sample, event, bytes) in parse_midi_input(input.iter(scope)) {
+                for (sample, event, bytes) in parse_midi_input(input.port.iter(scope)) {
                     if let LiveEvent::Midi { message, .. } = event {
                         phrase.record_event({
                             let sample    = (sample0 + sample - start) as f64;
diff --git a/midi/src/midi_out.rs b/midi/src/midi_out.rs
index a15d4c88..e686bf12 100644
--- a/midi/src/midi_out.rs
+++ b/midi/src/midi_out.rs
@@ -2,8 +2,8 @@ use crate::*;
 
 /// Trait for thing that may output MIDI.
 pub trait HasMidiOuts {
-    fn midi_outs (&self) -> &Vec<Port<MidiOut>>;
-    fn midi_outs_mut (&mut self) -> &mut Vec<Port<MidiOut>>;
+    fn midi_outs (&self) -> &Vec<JackPort<MidiOut>>;
+    fn midi_outs_mut (&mut self) -> &mut Vec<JackPort<MidiOut>>;
     fn has_midi_outs (&self) -> bool {
         !self.midi_outs().is_empty()
     }
@@ -143,7 +143,7 @@ pub trait MidiPlaybackApi: HasPlayPhrase + HasClock + HasMidiOuts {
     fn write (&mut self, scope: &ProcessScope, out: &[Vec<Vec<u8>>]) {
         let samples = scope.n_frames() as usize;
         for port in self.midi_outs_mut().iter_mut() {
-            Self::write_port(&mut port.writer(scope), samples, out)
+            Self::write_port(&mut port.port.writer(scope), samples, out)
         }
     }
 
diff --git a/midi/src/midi_player.rs b/midi/src/midi_player.rs
index 43789a54..3edc47e1 100644
--- a/midi/src/midi_player.rs
+++ b/midi/src/midi_player.rs
@@ -35,9 +35,9 @@ pub struct MidiPlayer {
     /// Send all notes off
     pub reset:       bool, // TODO?: after Some(nframes)
     /// Record from MIDI ports to current sequence.
-    pub midi_ins:    Vec<Port<MidiIn>>,
+    pub midi_ins:    Vec<JackPort<MidiIn>>,
     /// Play from current sequence to MIDI ports
-    pub midi_outs:   Vec<Port<MidiOut>>,
+    pub midi_outs:   Vec<JackPort<MidiOut>>,
     /// Notes currently held at input
     pub notes_in:    Arc<RwLock<[bool; 128]>>,
     /// Notes currently held at output
@@ -47,33 +47,28 @@ pub struct MidiPlayer {
 }
 impl MidiPlayer {
     pub fn new (
-        jack:      &Arc<RwLock<JackConnection>>,
-        name:      impl AsRef<str>,
-        clip:      Option<&Arc<RwLock<MidiClip>>>,
-        midi_from: &[impl AsRef<str>],
-        midi_to:   &[impl AsRef<str>],
+        jack: &Arc<RwLock<JackConnection>>,
+        name: impl AsRef<str>,
+        clip: Option<&Arc<RwLock<MidiClip>>>,
+        midi_from: &[PortConnection],
+        midi_to:   &[PortConnection],
     ) -> Usually<Self> {
-        let name     = name.as_ref();
-        let midi_in  = jack.midi_in(&format!("M/{name}"), midi_from)?;
-        jack.connect_midi_from(&midi_in, midi_from)?;
-        let midi_out = jack.midi_out(&format!("{name}/M"), midi_to)?;
-        jack.connect_midi_to(&midi_out, midi_to)?;
-        let clock    = Clock::from(jack);
+        let name  = name.as_ref();
+        let clock = Clock::from(jack);
         Ok(Self {
             play_phrase: Some((Moment::zero(&clock.timebase), clip.cloned())),
-
             next_phrase: None,
             recording:   false,
             monitoring:  false,
             overdub:     false,
 
-            notes_in:    RwLock::new([false;128]).into(),
-            midi_ins:    vec![midi_in],
-            midi_outs:   vec![midi_out],
-            notes_out:   RwLock::new([false;128]).into(),
-            note_buf:    vec![0;8],
-            reset:       true,
+            notes_in:  RwLock::new([false;128]).into(),
+            notes_out: RwLock::new([false;128]).into(),
+            note_buf:  vec![0;8],
+            reset:     true,
 
+            midi_ins:  vec![JackPort::<MidiIn>::new(jack,  format!("M/{name}"), midi_from)?,],
+            midi_outs: vec![JackPort::<MidiOut>::new(jack, format!("{name}/M"), midi_to)?,  ],
             clock,
         })
     }
@@ -114,26 +109,14 @@ from!(|state: (&Clock, &Arc<RwLock<MidiClip>>)|MidiPlayer = {
     model
 });
 has_clock!(|self: MidiPlayer|&self.clock);
-
 impl HasMidiIns for MidiPlayer {
-    fn midi_ins (&self) -> &Vec<Port<MidiIn>> {
-        &self.midi_ins
-    }
-    fn midi_ins_mut (&mut self) -> &mut Vec<Port<MidiIn>> {
-        &mut self.midi_ins
-    }
+    fn midi_ins (&self) -> &Vec<JackPort<MidiIn>> { &self.midi_ins }
+    fn midi_ins_mut (&mut self) -> &mut Vec<JackPort<MidiIn>> { &mut self.midi_ins }
 }
-
 impl HasMidiOuts for MidiPlayer {
-    fn midi_outs (&self) -> &Vec<Port<MidiOut>> {
-        &self.midi_outs
-    }
-    fn midi_outs_mut (&mut self) -> &mut Vec<Port<MidiOut>> {
-        &mut self.midi_outs
-    }
-    fn midi_note (&mut self) -> &mut Vec<u8> {
-        &mut self.note_buf
-    }
+    fn midi_outs (&self) -> &Vec<JackPort<MidiOut>> { &self.midi_outs }
+    fn midi_outs_mut (&mut self) -> &mut Vec<JackPort<MidiOut>> { &mut self.midi_outs }
+    fn midi_note (&mut self) -> &mut Vec<u8> { &mut self.note_buf }
 }
 
 /// Hosts the JACK callback for a single MIDI player
diff --git a/src/main.rs b/src/main.rs
index b216307b..7187a859 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -15,67 +15,38 @@ pub struct TekCli {
     #[arg(short='s', long, default_value_t = true)] sync_follow: bool,
     /// Initial tempo in beats per minute
     #[arg(short='b', long, default_value = None)] bpm: Option<f64>,
+    /// Whether to include a transport toolbar (default: true)
+    #[arg(short='t', long, default_value_t = true)] show_clock: bool,
+    /// MIDI outs to connect to (multiple instances accepted)
+    #[arg(short='I', long)] midi_from: Vec<String>,
+    /// MIDI outs to connect to (multiple instances accepted)
+    #[arg(short='i', long)] midi_from_re: Vec<String>,
+    /// MIDI ins to connect to (multiple instances accepted)
+    #[arg(short='O', long)] midi_to: Vec<String>,
+    /// MIDI ins to connect to (multiple instances accepted)
+    #[arg(short='o', long)] midi_to_re: Vec<String>,
+    /// Audio outs to connect to left input
+    #[arg(short='l', long)] l_from: Vec<String>,
+    /// Audio outs to connect to right input
+    #[arg(short='r', long)] r_from: Vec<String>,
+    /// Audio ins to connect from left output
+    #[arg(short='L', long)] l_to: Vec<String>,
+    /// Audio ins to connect from right output
+    #[arg(short='R', long)] r_to: Vec<String>,
 }
 
 #[derive(Debug, Clone, Subcommand)]
 pub enum TekMode {
-    /// A standalone transport view.
+    /// A standalone transport clock.
     Clock,
     /// A MIDI sequencer.
-    Sequencer {
-        /// Whether to include a transport toolbar (default: true)
-        #[arg(short='t', long, default_value_t = true)] show_clock: bool,
-        /// MIDI outs to connect to (multiple instances accepted)
-        #[arg(short='i', long)] midi_from: Vec<String>,
-        /// MIDI ins to connect to (multiple instances accepted)
-        #[arg(short='o', long)] midi_to: Vec<String>,
-    },
+    Sequencer,
     /// A MIDI-controlled audio sampler.
-    Sampler {
-        /// MIDI outs to connect to (multiple instances accepted)
-        #[arg(short='i', long)] midi_from: Vec<String>,
-        /// Audio outs to connect to left input
-        #[arg(short='l', long)] l_from: Vec<String>,
-        /// Audio outs to connect to right input
-        #[arg(short='r', long)] r_from: Vec<String>,
-        /// Audio ins to connect from left output
-        #[arg(short='L', long)] l_to: Vec<String>,
-        /// Audio ins to connect from right output
-        #[arg(short='R', long)] r_to: Vec<String>,
-    },
+    Sampler,
     /// Sequencer and sampler together.
-    Groovebox {
-        /// Whether to include a transport toolbar (default: true)
-        #[arg(short='t', long, default_value_t = true)] show_clock: bool,
-        /// MIDI outs to connect to (multiple instances accepted)
-        #[arg(short='i', long)] midi_from: Vec<String>,
-        /// MIDI ins to connect to (multiple instances accepted)
-        #[arg(short='o', long)] midi_to: Vec<String>,
-        /// Audio outs to connect to left input
-        #[arg(short='l', long)] l_from: Vec<String>,
-        /// Audio outs to connect to right input
-        #[arg(short='r', long)] r_from: Vec<String>,
-        /// Audio ins to connect from left output
-        #[arg(short='L', long)] l_to: Vec<String>,
-        /// Audio ins to connect from right output
-        #[arg(short='R', long)] r_to: Vec<String>,
-    },
+    Groovebox,
     /// Multi-track MIDI sequencer.
     Arranger {
-        /// Whether to include a transport toolbar (default: true)
-        #[arg(short='t', long, default_value_t = true)] show_clock: bool,
-        /// MIDI outs to connect to (multiple instances accepted)
-        #[arg(short='i', long)] midi_from: Vec<String>,
-        /// MIDI ins to connect to (multiple instances accepted)
-        #[arg(short='o', long)] midi_to: Vec<String>,
-        /// Audio outs to connect to left input
-        #[arg(short='l', long)] l_from: Vec<String>,
-        /// Audio outs to connect to right input
-        #[arg(short='r', long)] r_from: Vec<String>,
-        /// Audio ins to connect from left output
-        #[arg(short='L', long)] l_to: Vec<String>,
-        /// Audio ins to connect from right output
-        #[arg(short='R', long)] r_to: Vec<String>,
         /// Number of tracks
         #[arg(short = 'x', long, default_value_t = 16)] tracks: usize,
         /// Width of tracks
@@ -97,6 +68,12 @@ pub fn main () -> Usually<()> {
     let name   = cli.name.as_ref().map_or("tek", |x|x.as_str());
     let jack   = JackConnection::new(name)?;
     let engine = Tui::new()?;
+    let mut midi_froms = vec![];
+    let mut midi_tos   = vec![];
+    for port in cli.midi_from.iter()    { midi_froms.push(PortConnection::exact(port.into()))  }
+    for port in cli.midi_from_re.iter() { midi_froms.push(PortConnection::regexp(port.into())) }
+    for port in cli.midi_to.iter()      { midi_tos.push(PortConnection::exact(port.into()))    }
+    for port in cli.midi_to_re.iter()   { midi_tos.push(PortConnection::regexp(port.into()))   }
     Ok(match cli.mode {
 
         TekMode::Clock => engine.run(&jack.activate_with(|jack|Ok(TransportTui {
@@ -104,15 +81,11 @@ pub fn main () -> Usually<()> {
             jack:  jack.clone()
         }))?)?,
 
-        TekMode::Sequencer {
-            midi_from, midi_to, ..
-        } => engine.run(&jack.activate_with(|jack|Ok({
-            let clock = Clock::from(jack);
-            let clip = Arc::new(RwLock::new(MidiClip::new(
-                "Clip", true, 4 * clock.timebase.ppq.get() as usize,
-                None, Some(ItemColor::random().into())
-            )));
-            let player = MidiPlayer::new(&jack, name, Some(&clip), &midi_from, &midi_to)?;
+        TekMode::Sequencer => engine.run(&jack.activate_with(|jack|Ok({
+            let length = 384;
+            let color  = Some(ItemColor::random().into());
+            let clip   = Arc::new(RwLock::new(MidiClip::new("Clip", true, length, None, color)));
+            let player = MidiPlayer::new(&jack, name, Some(&clip), &midi_froms, &midi_tos)?;
             Sequencer {
                 _jack:     jack.clone(),
                 clock:     player.clock.clone(),
@@ -130,9 +103,7 @@ pub fn main () -> Usually<()> {
             }
         }))?)?,
 
-        TekMode::Sampler {
-            midi_from, l_from, r_from, l_to, r_to, ..
-        } => engine.run(&jack.activate_with(|jack|Ok(
+        TekMode::Sampler => engine.run(&jack.activate_with(|jack|Ok(
             SamplerTui {
                 cursor:  (0, 0),
                 editing: None,
@@ -141,53 +112,29 @@ pub fn main () -> Usually<()> {
                 note_lo: 36.into(),
                 note_pt: 36.into(),
                 color:   ItemPalette::from(Color::Rgb(64, 128, 32)),
-                state:   Sampler::new(jack, &"sampler",
-                    &midi_from,
-                    &[&l_from, &r_from],
-                    &[&l_to, &r_to],
-                )?,
+                state:   Sampler::new(jack, &"sampler", &midi_froms, &[&l_from, &r_from], &[&l_to, &r_to])?,
             }
         ))?)?,
 
-        TekMode::Groovebox {
-            midi_from, midi_to, l_from, r_from, l_to, r_to, ..
-        } => engine.run(&jack.activate_with(|jack|Ok({
-            let ppq = 96;
-            let phrase = Arc::new(RwLock::new(MidiClip::new(
-                "Clip",
-                true,
-                4 * ppq,
-                None,
-                Some(ItemColor::random().into())
-            )));
-            let mut player = MidiPlayer::new(jack, &"sequencer", Some(&phrase),
-                &midi_from,
-                &midi_to
-            )?;
-            player.play_phrase = Some((Moment::zero(&player.clock.timebase), Some(phrase.clone())));
-            let sampler = Sampler::new(jack, &"sampler",
-                &midi_from,
-                &[&l_from, &r_from],
-                &[&l_to,   &r_to  ],
-            )?;
-            jack.read().unwrap().client().connect_ports(
-                &player.midi_outs[0],
-                &sampler.midi_in
-            )?;
+        TekMode::Groovebox => engine.run(&jack.activate_with(|jack|Ok({
+            let length = 384;
+            let color  = Some(ItemColor::random().into());
+            let clip   = Arc::new(RwLock::new(MidiClip::new("Clip", true, length, None, color)));
+            let mut player = MidiPlayer::new(jack, &"sequencer", Some(&clip), &midi_froms, &midi_tos)?;
+            let sampler = Sampler::new(jack, &"sampler", &midi_froms, &[&l_from, &r_from], &[&l_to, &r_to])?;
+            jack.read().unwrap().client().connect_ports(&player.midi_outs[0].port, &sampler.midi_in.port)?;
             let app = Groovebox {
                 player,
                 sampler,
-                _jack:    jack.clone(),
-
-                pool:     PoolModel::from(&phrase),
-                editor:   MidiEditor::from(&phrase),
-
+                pool:     PoolModel::from(&clip),
+                editor:   MidiEditor::from(&clip),
                 compact:  true,
                 status:   true,
                 size:     Measure::new(),
                 midi_buf: vec![vec![];65536],
                 note_buf: vec![],
                 perf:     PerfModel::default(),
+                _jack:    jack.clone(),
             };
             if let Some(bpm) = cli.bpm {
                 app.clock().timebase.bpm.set(bpm);
@@ -207,14 +154,13 @@ pub fn main () -> Usually<()> {
             app
         }))?)?,
 
-        TekMode::Arranger {
-            scenes, tracks, track_width, midi_from, midi_to, ..
-        } => engine.run(&jack.activate_with(|jack|Ok({
-            let mut app = Arranger::new(jack);
-            app.tracks_add(tracks, track_width, midi_from.as_slice(), midi_to.as_slice())?;
-            app.scenes_add(scenes)?;
-            app
-        }))?)?,
+        TekMode::Arranger { scenes, tracks, track_width, .. } =>
+            engine.run(&jack.activate_with(|jack|Ok({
+                let mut app = Arranger::new(jack);
+                app.tracks_add(tracks, track_width, &midi_froms, &midi_tos)?;
+                app.scenes_add(scenes)?;
+                app
+            }))?)?,
 
         _ => todo!()
     })
diff --git a/tek/src/arranger/arranger_track.rs b/tek/src/arranger/arranger_track.rs
index 857514a5..e96c32ed 100644
--- a/tek/src/arranger/arranger_track.rs
+++ b/tek/src/arranger/arranger_track.rs
@@ -37,13 +37,9 @@ impl Arranger {
             let color = track_color_1.mix(track_color_2, i as f32 / count as f32).into();
             let mut track = self.track_add(None, Some(color))?;
             track.width = width;
-
-            let name = &format!("{}I", &track.name);
-            let port = jack.read().unwrap().client().register_port(&name, MidiIn::default())?;
+            let port = JackPort::<MidiIn>::new(&jack, &format!("{}I", &track.name), &[])?;
             track.player.midi_ins.push(port);
-
-            let name = &format!("{}O", &track.name);
-            let port = jack.read().unwrap().client().register_port(&name, MidiOut::default())?;
+            let port = JackPort::<MidiOut>::new(&jack, &format!("{}O", &track.name), &[])?;
             track.player.midi_outs.push(port);
         }
         for connection in midi_from.iter() {
@@ -51,14 +47,14 @@ impl Arranger {
             let number = split.next().unwrap().trim();
             if let Ok(track) = number.parse::<usize>() {
                 if track < 1 {
-                    panic!("Tracks are zero-indexed")
+                    panic!("Tracks start from 1")
                 }
                 if track > count {
                     panic!("Tried to connect track {track} or {count}. Pass -t {track} to increase number of tracks.")
                 }
                 if let Some(port) = split.next() {
                     if let Some(port) = jack.read().unwrap().client().port_by_name(port).as_ref() {
-                        jack.read().unwrap().client().connect_ports(port, &self.tracks[track-1].player.midi_ins[0])?;
+                        //jack.read().unwrap().client().connect_ports(port, &self.tracks[track-1].player.midi_ins[0])?;
                     } else {
                         panic!("Missing MIDI output: {port}. Use jack_lsp to list all port names.");
                     }
@@ -74,14 +70,14 @@ impl Arranger {
             let number = split.next().unwrap().trim();
             if let Ok(track) = number.parse::<usize>() {
                 if track < 1 {
-                    panic!("Tracks are zero-indexed")
+                    panic!("Tracks start from 1")
                 }
                 if track > count {
                     panic!("Tried to connect track {track} or {count}. Pass -t {track} to increase number of tracks.")
                 }
                 if let Some(port) = split.next() {
                     if let Some(port) = jack.read().unwrap().client().port_by_name(port).as_ref() {
-                        jack.read().unwrap().client().connect_ports(&self.tracks[track-1].player.midi_outs[0], port)?;
+                        //jack.read().unwrap().client().connect_ports(&self.tracks[track-1].player.midi_outs[0], port)?;
                     } else {
                         panic!("Missing MIDI input: {port}. Use jack_lsp to list all port names.");
                     }
diff --git a/tek/src/groovebox.rs b/tek/src/groovebox.rs
index 1f686372..a5bb6833 100644
--- a/tek/src/groovebox.rs
+++ b/tek/src/groovebox.rs
@@ -38,7 +38,7 @@ audio!(|self: Groovebox, client, scope|{
         return Control::Quit
     }
     // TODO move these to editor and sampler:
-    for RawMidi { time, bytes } in self.player.midi_ins[0].iter(scope) {
+    for RawMidi { time, bytes } in self.player.midi_ins[0].port.iter(scope) {
         if let LiveEvent::Midi { message, .. } = LiveEvent::parse(bytes).unwrap() {
             match message {
                 MidiMessage::NoteOn { ref key, .. } => {
diff --git a/tek/src/sampler.rs b/tek/src/sampler.rs
index 0fb8dbe5..f4fa229a 100644
--- a/tek/src/sampler.rs
+++ b/tek/src/sampler.rs
@@ -2,12 +2,10 @@ mod sample;          pub use self::sample::*;
 mod sample_import;   pub use self::sample_import::*;
 mod sample_list;     pub use self::sample_list::*;
 mod sample_viewer;   pub use self::sample_viewer::*;
-mod sampler_audio;   pub use self::sampler_audio::*;
 mod sampler_command; pub use self::sampler_command::*;
 mod sampler_status;  pub use self::sampler_status::*;
 mod sampler_tui;     pub use self::sampler_tui::*;
 mod voice;           pub use self::voice::*;
-
 use crate::*;
 use KeyCode::Char;
 use std::fs::File;
@@ -23,7 +21,6 @@ use symphonia::{
     default::get_codecs,
 };
 
-
 /// The sampler plugin plays sounds.
 #[derive(Debug)]
 pub struct Sampler {
@@ -33,10 +30,10 @@ pub struct Sampler {
     pub recording:   Option<(usize, Arc<RwLock<Sample>>)>,
     pub unmapped:    Vec<Arc<RwLock<Sample>>>,
     pub voices:      Arc<RwLock<Vec<Voice>>>,
-    pub midi_in:     Port<MidiIn>,
-    pub audio_ins:   Vec<Port<AudioIn>>,
+    pub midi_in:     JackPort<MidiIn>,
+    pub audio_ins:   Vec<JackPort<AudioIn>>,
     pub input_meter: Vec<f32>,
-    pub audio_outs:  Vec<Port<AudioOut>>,
+    pub audio_outs:  Vec<JackPort<AudioOut>>,
     pub buffer:      Vec<Vec<f32>>,
     pub output_gain: f32
 }
@@ -44,21 +41,21 @@ impl Sampler {
     pub fn new (
         jack:       &Arc<RwLock<JackConnection>>,
         name:       impl AsRef<str>,
-        midi_from:  &[impl AsRef<str>],
-        audio_from: &[&[impl AsRef<str>];2],
-        audio_to:   &[&[impl AsRef<str>];2],
+        midi_from:  &[PortConnection],
+        audio_from: &[&[PortConnection];2],
+        audio_to:   &[&[PortConnection];2],
     ) -> Usually<Self> {
         let name = name.as_ref();
         Ok(Self {
-            midi_in: jack.midi_in(&format!("M/{name}"), midi_from)?,
+            midi_in: JackPort::<MidiIn>::new(jack, format!("M/{name}"), midi_from)?,
             audio_ins: vec![
-                jack.audio_in(&format!("L/{name}"), audio_from[0])?,
-                jack.audio_in(&format!("R/{name}"), audio_from[1])?
+                JackPort::<AudioIn>::new(jack, &format!("L/{name}"), audio_from[0])?,
+                JackPort::<AudioIn>::new(jack, &format!("R/{name}"), audio_from[1])?,
             ],
             input_meter: vec![0.0;2],
             audio_outs: vec![
-                jack.audio_out(&format!("{name}/L"), audio_to[0])?,
-                jack.audio_out(&format!("{name}/R"), audio_to[1])?,
+                JackPort::<AudioOut>::new(jack, &format!("{name}/L"), audio_to[0])?,
+                JackPort::<AudioOut>::new(jack, &format!("{name}/R"), audio_to[1])?,
             ],
             jack:        jack.clone(),
             name:        name.into(),
@@ -91,6 +88,120 @@ impl Sampler {
     }
 }
 
+audio!(|self: SamplerTui, client, scope|{
+    SamplerAudio(&mut self.state).process(client, scope)
+});
+
+pub struct SamplerAudio<'a>(pub &'a mut Sampler);
+
+audio!(|self: SamplerAudio<'a>, _client, scope|{
+    self.0.process_midi_in(scope);
+    self.0.clear_output_buffer();
+    self.0.process_audio_out(scope);
+    self.0.write_output_buffer(scope);
+    self.0.process_audio_in(scope);
+    Control::Continue
+});
+
+impl Sampler {
+
+    pub fn process_audio_in (&mut self, scope: &ProcessScope) {
+        let Sampler { audio_ins, input_meter, recording, .. } = self;
+        if audio_ins.len() != input_meter.len() {
+            *input_meter = vec![0.0;audio_ins.len()];
+        }
+        if let Some((_, sample)) = recording {
+            let mut sample = sample.write().unwrap();
+            if sample.channels.len() != audio_ins.len() {
+                panic!("channel count mismatch");
+            }
+            let iterator = audio_ins.iter().zip(input_meter).zip(sample.channels.iter_mut());
+            let mut length = 0;
+            for ((input, meter), channel) in iterator {
+                let slice = input.port.as_slice(scope);
+                length = length.max(slice.len());
+                let total: f32 = slice.iter().map(|x|x.abs()).sum();
+                let count = slice.len() as f32;
+                *meter = 10. * (total / count).log10();
+                channel.extend_from_slice(slice);
+            }
+            sample.end += length;
+        } else {
+            for (input, meter) in audio_ins.iter().zip(input_meter) {
+                let slice = input.port.as_slice(scope);
+                let total: f32 = slice.iter().map(|x|x.abs()).sum();
+                let count = slice.len() as f32;
+                *meter = 10. * (total / count).log10();
+            }
+        }
+    }
+
+    /// Create [Voice]s from [Sample]s in response to MIDI input.
+    pub fn process_midi_in (&mut self, scope: &ProcessScope) {
+        let Sampler { midi_in, mapped, voices, .. } = self;
+        for RawMidi { time, bytes } in midi_in.port.iter(scope) {
+            if let LiveEvent::Midi { message, .. } = LiveEvent::parse(bytes).unwrap() {
+                match message {
+                    MidiMessage::NoteOn { ref key, ref vel } => {
+                        if let Some(ref sample) = mapped[key.as_int() as usize] {
+                            voices.write().unwrap().push(Sample::play(sample, time as usize, vel));
+                        }
+                    },
+                    MidiMessage::Controller { controller, value } => {
+                        // TODO
+                    }
+                    _ => {}
+                }
+            }
+        }
+    }
+
+    /// Zero the output buffer.
+    pub fn clear_output_buffer (&mut self) {
+        for buffer in self.buffer.iter_mut() {
+            buffer.fill(0.0);
+        }
+    }
+
+    /// Mix all currently playing samples into the output.
+    pub fn process_audio_out (&mut self, scope: &ProcessScope) {
+        let Sampler { ref mut buffer, voices, output_gain, .. } = self;
+        let channel_count = buffer.len();
+        voices.write().unwrap().retain_mut(|voice|{
+            for index in 0..scope.n_frames() as usize {
+                if let Some(frame) = voice.next() {
+                    for (channel, sample) in frame.iter().enumerate() {
+                        // Averaging mixer:
+                        //self.buffer[channel % channel_count][index] = (
+                            //(self.buffer[channel % channel_count][index] + sample * self.output_gain) / 2.0
+                        //);
+                        buffer[channel % channel_count][index] += sample * *output_gain;
+                    }
+                } else {
+                    return false
+                }
+            }
+            true
+        });
+    }
+
+    /// Write output buffer to output ports.
+    pub fn write_output_buffer (&mut self, scope: &ProcessScope) {
+        let Sampler { ref mut audio_outs, buffer, .. } = self;
+        for (i, port) in audio_outs.iter_mut().enumerate() {
+            let buffer = &buffer[i];
+            for (i, value) in port.port.as_mut_slice(scope).iter_mut().enumerate() {
+                *value = *buffer.get(i).unwrap_or(&0.0);
+            }
+        }
+    }
+
+}
+
+///////////////////////////////////////////////////////////////////////////////////////////////////
+
+type MidiSample = (Option<u7>, Arc<RwLock<crate::Sample>>);
+
 from_edn!("sampler" => |jack: &Arc<RwLock<JackConnection>>, args| -> crate::Sampler {
     let mut name = String::new();
     let mut dir  = String::new();
@@ -120,8 +231,6 @@ from_edn!("sampler" => |jack: &Arc<RwLock<JackConnection>>, args| -> crate::Samp
     Self::new(jack, &name)
 });
 
-type MidiSample = (Option<u7>, Arc<RwLock<crate::Sample>>);
-
 from_edn!("sample" => |(_jack, dir): (&Arc<RwLock<JackConnection>>, &str), args| -> MidiSample {
     let mut name = String::new();
     let mut file = String::new();
diff --git a/tek/src/sampler/sampler_audio.rs b/tek/src/sampler/sampler_audio.rs
deleted file mode 100644
index 600622cf..00000000
--- a/tek/src/sampler/sampler_audio.rs
+++ /dev/null
@@ -1,111 +0,0 @@
-use crate::*;
-
-audio!(|self: SamplerTui, client, scope|{
-    SamplerAudio(&mut self.state).process(client, scope)
-});
-
-pub struct SamplerAudio<'a>(pub &'a mut Sampler);
-
-audio!(|self: SamplerAudio<'a>, _client, scope|{
-    self.0.process_midi_in(scope);
-    self.0.clear_output_buffer();
-    self.0.process_audio_out(scope);
-    self.0.write_output_buffer(scope);
-    self.0.process_audio_in(scope);
-    Control::Continue
-});
-
-impl Sampler {
-
-    pub fn process_audio_in (&mut self, scope: &ProcessScope) {
-        let Sampler { audio_ins, input_meter, recording, .. } = self;
-        if audio_ins.len() != input_meter.len() {
-            *input_meter = vec![0.0;audio_ins.len()];
-        }
-        if let Some((_, sample)) = recording {
-            let mut sample = sample.write().unwrap();
-            if sample.channels.len() != audio_ins.len() {
-                panic!("channel count mismatch");
-            }
-            let iterator = audio_ins.iter().zip(input_meter).zip(sample.channels.iter_mut());
-            let mut length = 0;
-            for ((input, meter), channel) in iterator {
-                let slice = input.as_slice(scope);
-                length = length.max(slice.len());
-                let total: f32 = slice.iter().map(|x|x.abs()).sum();
-                let count = slice.len() as f32;
-                *meter = 10. * (total / count).log10();
-                channel.extend_from_slice(slice);
-            }
-            sample.end += length;
-        } else {
-            for (input, meter) in audio_ins.iter().zip(input_meter) {
-                let slice = input.as_slice(scope);
-                let total: f32 = slice.iter().map(|x|x.abs()).sum();
-                let count = slice.len() as f32;
-                *meter = 10. * (total / count).log10();
-            }
-        }
-    }
-
-    /// Create [Voice]s from [Sample]s in response to MIDI input.
-    pub fn process_midi_in (&mut self, scope: &ProcessScope) {
-        let Sampler { midi_in, mapped, voices, .. } = self;
-        for RawMidi { time, bytes } in midi_in.iter(scope) {
-            if let LiveEvent::Midi { message, .. } = LiveEvent::parse(bytes).unwrap() {
-                match message {
-                    MidiMessage::NoteOn { ref key, ref vel } => {
-                        if let Some(ref sample) = mapped[key.as_int() as usize] {
-                            voices.write().unwrap().push(Sample::play(sample, time as usize, vel));
-                        }
-                    },
-                    MidiMessage::Controller { controller, value } => {
-                        // TODO
-                    }
-                    _ => {}
-                }
-            }
-        }
-    }
-
-    /// Zero the output buffer.
-    pub fn clear_output_buffer (&mut self) {
-        for buffer in self.buffer.iter_mut() {
-            buffer.fill(0.0);
-        }
-    }
-
-    /// Mix all currently playing samples into the output.
-    pub fn process_audio_out (&mut self, scope: &ProcessScope) {
-        let Sampler { ref mut buffer, voices, output_gain, .. } = self;
-        let channel_count = buffer.len();
-        voices.write().unwrap().retain_mut(|voice|{
-            for index in 0..scope.n_frames() as usize {
-                if let Some(frame) = voice.next() {
-                    for (channel, sample) in frame.iter().enumerate() {
-                        // Averaging mixer:
-                        //self.buffer[channel % channel_count][index] = (
-                            //(self.buffer[channel % channel_count][index] + sample * self.output_gain) / 2.0
-                        //);
-                        buffer[channel % channel_count][index] += sample * *output_gain;
-                    }
-                } else {
-                    return false
-                }
-            }
-            true
-        });
-    }
-
-    /// Write output buffer to output ports.
-    pub fn write_output_buffer (&mut self, scope: &ProcessScope) {
-        let Sampler { ref mut audio_outs, buffer, .. } = self;
-        for (i, port) in audio_outs.iter_mut().enumerate() {
-            let buffer = &buffer[i];
-            for (i, value) in port.as_mut_slice(scope).iter_mut().enumerate() {
-                *value = *buffer.get(i).unwrap_or(&0.0);
-            }
-        }
-    }
-
-}