diff --git a/src/arranger.rs b/src/arranger.rs
index 502d6293..efb6d39f 100644
--- a/src/arranger.rs
+++ b/src/arranger.rs
@@ -100,8 +100,8 @@ impl ArrangerTui {
     }
 }
 render!(<Tui>|self: ArrangerTui|{
-    let play           = Fixed::wh(5, 2, PlayPause(self.clock.is_rolling()));
-    let transport      = TransportView::from((self, Some(ItemPalette::from(TuiTheme::g(96))), true));
+    let play           = PlayPause(self.clock.is_rolling());
+    let transport      = TransportView::new(self, Some(ItemPalette::from(TuiTheme::g(96))), true);
     let with_transport = |x|col!([row!(![&play, &transport]), &x]);
     let pool_size      = if self.phrases.visible { self.splits[1] } else { 0 };
     let with_pool      = |x|Split::w(false, pool_size, PoolView(&self.phrases), x);
diff --git a/src/groovebox.rs b/src/groovebox.rs
index 00457ed4..a1f24c71 100644
--- a/src/groovebox.rs
+++ b/src/groovebox.rs
@@ -117,15 +117,16 @@ render!(<Tui>|self:Groovebox|{
     let pool_w    = if self.pool.visible { phrase_w } else { 0 };
     let sampler_w = 11;
     let note_pt   = self.editor.note_point();
+    let color     = self.player.play_phrase().as_ref()
+        .and_then(|(_,p)|p.as_ref().map(|p|p.read().unwrap().color))
+        .clone();
     Fill::wh(lay!([
         &self.size,
         Fill::wh(Align::s(Fixed::h(2, GrooveboxStatus::from(self)))),
         Shrink::y(2, col!([
-            Fixed::h(2, row!([
-                Fixed::wh(5, 2, PlayPause(self.clock().is_rolling())),
-                Fixed::h(2, TransportView::from((self, self.player.play_phrase().as_ref().map(|(_,p)|
-                   p.as_ref().map(|p|p.read().unwrap().color)
-               ).flatten().clone(), true))),
+            Fixed::h(3, row!([
+                PlayPause(self.clock().is_rolling()),
+                TransportView::new(self, color, true),
             ])),
             Push::x(sampler_w, Fixed::h(1, row!([
                 PhraseSelector::play_phrase(&self.player),
diff --git a/src/sequencer.rs b/src/sequencer.rs
index 02577226..b9dc4287 100644
--- a/src/sequencer.rs
+++ b/src/sequencer.rs
@@ -57,8 +57,8 @@ render!(<Tui>|self: SequencerTui|{
     ).flatten().clone();
 
     let toolbar = Cond::when(self.transport, row!([
-        Fixed::wh(5, 2, PlayPause(self.clock.is_rolling())),
-        Fixed::h(2, TransportView::from((self, color, true))),
+        PlayPause(self.clock.is_rolling()),
+        TransportView::new(self, color, true),
     ]));
 
     let play_queue = Cond::when(self.selectors, row!([
diff --git a/src/space.rs b/src/space.rs
index e8019866..72bd9d3c 100644
--- a/src/space.rs
+++ b/src/space.rs
@@ -11,6 +11,11 @@ mod scroll;   pub use self::scroll::*;
 mod size;     pub use self::size::*;
 mod split;    pub use self::split::*;
 
+/// A cardinal direction.
+#[derive(Copy, Clone, PartialEq)]
+pub enum Direction { North, South, West, East, }
+use self::Direction::*;
+
 /// Has static methods for conditional rendering,
 /// in unary and binary forms.
 pub struct Cond;
@@ -94,6 +99,36 @@ pub trait Size<N: Coordinate> {
     }
 }
 
+pub trait HasSize<E: Engine> {
+    fn size (&self) -> &Measure<E>;
+}
+
+#[macro_export] macro_rules! has_size {
+    (<$E:ty>|$self:ident:$Struct:ident$(<$($L:lifetime),*$($T:ident$(:$U:path)?),*>)?|$cb:expr) => {
+        impl $(<$($L),*$($T $(: $U)?),*>)? HasSize<$E> for $Struct $(<$($L),*$($T),*>)? {
+            fn size (&$self) -> &Measure<$E> { $cb }
+        }
+    }
+}
+
+/// A widget that tracks its render width and height
+#[derive(Default)]
+pub struct Measure<E: Engine> {
+    _engine: PhantomData<E>,
+    pub x: Arc<AtomicUsize>,
+    pub y: Arc<AtomicUsize>,
+}
+
+pub struct ShowMeasure<'a>(&'a Measure<Tui>);
+
+pub trait LayoutDebug<E: Engine> {
+    fn debug <W: Render<E>> (other: W) -> DebugOverlay<E, W> {
+        DebugOverlay(Default::default(), other)
+    }
+}
+
+pub struct DebugOverlay<E: Engine, W: Render<E>>(PhantomData<E>, pub W);
+
 pub trait Area<N: Coordinate>: Copy {
     fn x  (&self) -> N;
     fn y  (&self) -> N;
@@ -319,14 +354,27 @@ pub enum Margin<E: Engine, T: Render<E>> {
 
 by_axis!(+Margin);
 
-/// A cardinal direction.
-#[derive(Copy, Clone, PartialEq)]
-pub enum Direction { North, South, West, East, }
-
 /// A binary split with fixed proportion
-pub struct Split<E: Engine, A: Render<E>, B: Render<E>>(
-    pub bool, pub Direction, pub E::Unit, A, B, PhantomData<E>
-);
+pub struct Split<E, A, B>(pub bool, pub Direction, pub E::Unit, A, B, PhantomData<E>)
+where E: Engine, A: Render<E>, B: Render<E>;
+
+impl<E: Engine, A: Render<E>, B: Render<E>> Split<E, A, B> {
+    #[inline] pub fn new (flip: bool, direction: Direction, proportion: E::Unit, a: A, b: B) -> Self {
+        Self(flip, direction, proportion, a, b, Default::default())
+    }
+    #[inline] pub fn n (flip: bool, proportion: E::Unit, a: A, b: B) -> Self {
+        Self::new(flip, North, proportion, a, b)
+    }
+    #[inline] pub fn s (flip: bool, proportion: E::Unit, a: A, b: B) -> Self {
+        Self::new(flip, South, proportion, a, b)
+    }
+    #[inline] pub fn e (flip: bool, proportion: E::Unit, a: A, b: B) -> Self {
+        Self::new(flip, West, proportion, a, b)
+    }
+    #[inline] pub fn w (flip: bool, proportion: E::Unit, a: A, b: B) -> Self {
+        Self::new(flip, East, proportion, a, b)
+    }
+}
 
 pub enum Bsp<E: Engine, X: Render<E>, Y: Render<E>> {
     /// X is north of Y
@@ -345,11 +393,39 @@ pub enum Bsp<E: Engine, X: Render<E>, Y: Render<E>> {
     Null(PhantomData<E>),
 }
 
+impl<E: Engine, X: Render<E>, Y: Render<E>> Bsp<E, X, Y> {
+    pub fn new (x: X)       -> Self { Self::A(Some(x), None)    }
+    pub fn n   (x: X, y: Y) -> Self { Self::N(Some(x), Some(y)) }
+    pub fn s   (x: X, y: Y) -> Self { Self::S(Some(x), Some(y)) }
+    pub fn e   (x: X, y: Y) -> Self { Self::E(Some(x), Some(y)) }
+    pub fn w   (x: X, y: Y) -> Self { Self::W(Some(x), Some(y)) }
+    pub fn a   (x: X, y: Y) -> Self { Self::A(Some(x), Some(y)) }
+    pub fn b   (x: X, y: Y) -> Self { Self::B(Some(x), Some(y)) }
+}
+
 pub struct Stack<
     E: Engine,
     F: Send + Sync + Fn(&mut dyn FnMut(&dyn Render<E>)->Usually<()>)->Usually<()>
 >(pub F, pub Direction, PhantomData<E>);
 
+impl<
+    E: Engine,
+    F: Send + Sync + Fn(&mut dyn FnMut(&dyn Render<E>)->Usually<()>)->Usually<()>
+> Stack<E, F> {
+    #[inline] pub fn new (direction: Direction, build: F) -> Self {
+        Self(build, direction, Default::default())
+    }
+    #[inline] pub fn right (build: F) -> Self {
+        Self::new(East, build)
+    }
+    #[inline] pub fn down (build: F) -> Self {
+        Self::new(South, build)
+    }
+    #[inline] pub fn up (build: F) -> Self {
+        Self::new(North, build)
+    }
+}
+
 #[macro_export] macro_rules! col {
     ([$($expr:expr),* $(,)?]) => {
         Stack::down(move|add|{ $(add(&$expr)?;)* Ok(()) })
@@ -395,41 +471,11 @@ pub struct Stack<
     };
 }
 
-pub trait HasSize<E: Engine> {
-    fn size (&self) -> &Measure<E>;
-}
-
-#[macro_export] macro_rules! has_size {
-    (<$E:ty>|$self:ident:$Struct:ident$(<$($L:lifetime),*$($T:ident$(:$U:path)?),*>)?|$cb:expr) => {
-        impl $(<$($L),*$($T $(: $U)?),*>)? HasSize<$E> for $Struct $(<$($L),*$($T),*>)? {
-            fn size (&$self) -> &Measure<$E> { $cb }
-        }
-    }
-}
-
-pub trait LayoutDebug<E: Engine> {
-    fn debug <W: Render<E>> (other: W) -> DebugOverlay<E, W> {
-        DebugOverlay(Default::default(), other)
-    }
-}
-
-pub struct DebugOverlay<E: Engine, W: Render<E>>(PhantomData<E>, pub W);
-
-/// A widget that tracks its render width and height
-#[derive(Default)]
-pub struct Measure<E: Engine> {
-    _engine: PhantomData<E>,
-    pub x: Arc<AtomicUsize>,
-    pub y: Arc<AtomicUsize>,
-}
-
-pub struct ShowMeasure<'a>(&'a Measure<Tui>);
-
 /// A scrollable area.
-pub struct Scroll<
+pub struct Scroll<E, F>(pub F, pub Direction, pub u64, PhantomData<E>)
+where
     E: Engine,
-    F: Send + Sync + Fn(&mut dyn FnMut(&dyn Render<E>)->Usually<()>)->Usually<()>
->(pub F, pub Direction, pub u64, PhantomData<E>);
+    F: Send + Sync + Fn(&mut dyn FnMut(&dyn Render<E>)->Usually<()>)->Usually<()>;
 
 /// Override X and Y coordinates, aligning to corner, side, or center of area
 pub enum Align<E: Engine, T: Render<E>> {
diff --git a/src/space/split.rs b/src/space/split.rs
index e5f6217c..6bc8ef2d 100644
--- a/src/space/split.rs
+++ b/src/space/split.rs
@@ -27,24 +27,6 @@ impl Direction {
     }
 }
 
-impl<E: Engine, A: Render<E>, B: Render<E>> Split<E, A, B> {
-    pub fn new (flip: bool, direction: Direction, proportion: E::Unit, a: A, b: B) -> Self {
-        Self(flip, direction, proportion, a, b, Default::default())
-    }
-    pub fn n (flip: bool, proportion: E::Unit, a: A, b: B) -> Self {
-        Self(flip, North, proportion, a, b, Default::default())
-    }
-    pub fn s (flip: bool, proportion: E::Unit, a: A, b: B) -> Self {
-        Self(flip, South, proportion, a, b, Default::default())
-    }
-    pub fn e (flip: bool, proportion: E::Unit, a: A, b: B) -> Self {
-        Self(flip, West, proportion, a, b, Default::default())
-    }
-    pub fn w (flip: bool, proportion: E::Unit, a: A, b: B) -> Self {
-        Self(flip, East, proportion, a, b, Default::default())
-    }
-}
-
 impl<E: Engine, A: Render<E>, B: Render<E>> Render<E> for Split<E, A, B> {
     fn min_size (&self, to: E::Size) -> Perhaps<E::Size> {
         Ok(Some(to))
@@ -61,16 +43,6 @@ impl<E: Engine, A: Render<E>, B: Render<E>> Render<E> for Split<E, A, B> {
     }
 }
 
-impl<E: Engine, X: Render<E>, Y: Render<E>> Bsp<E, X, Y> {
-    pub fn new (x: X)       -> Self { Self::A(Some(x), None)    }
-    pub fn n   (x: X, y: Y) -> Self { Self::N(Some(x), Some(y)) }
-    pub fn s   (x: X, y: Y) -> Self { Self::S(Some(x), Some(y)) }
-    pub fn e   (x: X, y: Y) -> Self { Self::E(Some(x), Some(y)) }
-    pub fn w   (x: X, y: Y) -> Self { Self::W(Some(x), Some(y)) }
-    pub fn a   (x: X, y: Y) -> Self { Self::A(Some(x), Some(y)) }
-    pub fn b   (x: X, y: Y) -> Self { Self::B(Some(x), Some(y)) }
-}
-
 impl<E: Engine, X: Render<E>, Y: Render<E>> Default for Bsp<E, X, Y> {
     fn default () -> Self {
         Self::Null(Default::default())
@@ -142,24 +114,6 @@ impl<E: Engine, X: Render<E>, Y: Render<E>> Render<E> for Bsp<E, X, Y> {
     }
 }
 
-impl<
-    E: Engine,
-    F: Send + Sync + Fn(&mut dyn FnMut(&dyn Render<E>)->Usually<()>)->Usually<()>
-> Stack<E, F> {
-    #[inline] pub fn new (direction: Direction, build: F) -> Self {
-        Self(build, direction, Default::default())
-    }
-    #[inline] pub fn right (build: F) -> Self {
-        Self::new(East, build)
-    }
-    #[inline] pub fn down (build: F) -> Self {
-        Self::new(South, build)
-    }
-    #[inline] pub fn up (build: F) -> Self {
-        Self::new(North, build)
-    }
-}
-
 impl<E: Engine, F> Render<E> for Stack<E, F>
 where
     F: Send + Sync + Fn(&mut dyn FnMut(&dyn Render<E>)->Usually<()>)->Usually<()>
diff --git a/src/transport.rs b/src/transport.rs
index 746e8cd7..f9d90e93 100644
--- a/src/transport.rs
+++ b/src/transport.rs
@@ -18,10 +18,13 @@ from_jack!(|jack|TransportTui Self {
     cursor: (0, 0),
     focus:  TransportFocus::PlayPause
 });
-has_clock!(|self:TransportTui|&self.clock);
-audio!(|self:TransportTui,client,scope|ClockAudio(self).process(client, scope));
-handle!(<Tui>|self:TransportTui,from|TransportCommand::execute_with_state(self, from));
-render!(<Tui>|self: TransportTui|TransportView::from((self, None, true)));
+has_clock!(|self: TransportTui|&self.clock);
+audio!(|self: TransportTui, client, scope|ClockAudio(self).process(client, scope));
+handle!(<Tui>|self: TransportTui, from|TransportCommand::execute_with_state(self, from));
+render!(<Tui>|self: TransportTui|row!([
+    Fixed::wh(5, 3, PlayPause(false)),
+    Fixed::h(3, TransportView::new(self, None, true))
+]));
 impl std::fmt::Debug for TransportTui {
     fn fmt (&self, f: &mut std::fmt::Formatter<'_>) -> std::result::Result<(), std::fmt::Error> {
         f.debug_struct("TransportTui")
@@ -46,8 +49,8 @@ pub struct TransportView {
     current_sample: f64,
     current_second: f64,
 }
-impl<T: HasClock> From<(&T, Option<ItemPalette>, bool)> for TransportView {
-    fn from ((state, color, focused): (&T, Option<ItemPalette>, bool)) -> Self {
+impl TransportView {
+    pub fn new (state: &impl HasClock, color: Option<ItemPalette>, focused: bool) -> Self {
         let clock   = state.clock();
         let rate    = clock.timebase.sr.get();
         let chunk   = clock.chunk.load(Relaxed);
@@ -58,61 +61,56 @@ impl<T: HasClock> From<(&T, Option<ItemPalette>, bool)> for TransportView {
         let chunk   = format!("{chunk}");
         let latency = format!("{latency}");
         let color   = color.unwrap_or(ItemPalette::from(TuiTheme::g(32)));
-        if let Some(started) = clock.started.read().unwrap().as_ref() {
+        let (
+            global_sample, global_second, current_sample, current_second, beat
+        ) = if let Some(started) = clock.started.read().unwrap().as_ref() {
             let current_sample = (clock.global.sample.get() - started.sample.get())/1000.;
             let current_usec   = clock.global.usec.get() - started.usec.get();
             let current_second = current_usec/1000000.;
-            Self {
-                color, focused, sr, bpm, ppq, chunk, latency,
-                started: true,
-                global_sample:  format!("{:.0}k", started.sample.get()/1000.),
-                global_second:  format!("{:.1}s", started.usec.get()/1000.),
-                current_sample,
-                current_second,
-                beat: clock.timebase.format_beats_0(
-                    clock.timebase.usecs_to_pulse(current_usec)
-                ),
-            }
+            let global_sample  = format!("{:.0}k", started.sample.get()/1000.);
+            let global_second  = format!("{:.1}s", started.usec.get()/1000.);
+            let beat = clock.timebase.format_beats_1(clock.timebase.usecs_to_pulse(current_usec));
+            (global_sample, global_second, current_sample, current_second, beat)
         } else {
-            Self {
-                color, focused, sr, bpm, ppq, chunk, latency,
-                started: false,
-                global_sample:  format!("{:.0}k", clock.global.sample.get()/1000.),
-                global_second:  format!("{:.1}s", clock.global.usec.get()/1000000.),
-                current_sample: 0.0,
-                current_second: 0.0,
-                beat: format!("000.0.00")
-            }
+            let global_sample  = format!("{:.0}k", clock.global.sample.get()/1000.);
+            let global_second  = format!("{:.1}s", clock.global.usec.get()/1000000.);
+            let current_sample = 0.0;
+            let current_second = 0.0;
+            let beat = format!("000.0.00");
+            (global_sample, global_second, current_sample, current_second, beat)
+        };
+        Self {
+            color, focused, sr, bpm, ppq, chunk, latency, started: false,
+            global_sample, global_second, current_sample, current_second, beat
         }
     }
 }
 render!(<Tui>|self: TransportView|{
     let color = self.color;
-    struct Field<'a>(&'a str, &'a str, &'a ItemPalette);
-    render!(<Tui>|self: Field<'a>|row!([
-        Tui::fg_bg(self.2.lightest.rgb, self.2.base.rgb,    Tui::bold(true, self.0)),
-        Tui::fg_bg(self.2.base.rgb,     self.2.darkest.rgb, "▌"),
-        Tui::fg_bg(self.2.lightest.rgb, self.2.darkest.rgb, format!("{:>10}", self.1)),
-        Tui::fg_bg(self.2.darkest.rgb,  self.2.base.rgb,    "▌"),
-    ]));
-    Tui::bg(color.base.rgb, Fill::w(row!([
+    Fixed::h(3, Tui::bg(color.base.rgb, Fill::w(row!([
         //PlayPause(self.started), " ",
         col!([
-            Field(" Beat", self.beat.as_str(), &color),
-            Field(" Time", format!("{:.1}s", self.current_second).as_str(), &color),
+            TransportField(" Beat", self.beat.as_str(), &color),
+            TransportField(" Time", format!("{:.1}s", self.current_second).as_str(), &color),
+            TransportField("  BPM", self.bpm.as_str(),  &color),
+        ]),
+        col!([
+            TransportField("  Rate", format!("{}", self.sr).as_str(), &color),
+            TransportField(" Chunk", format!("{}", self.chunk).as_str(), &color),
+            TransportField("   Lag", format!("{:.3}ms", self.latency).as_str(), &color),
         ]),
         col!([
-            Field("  BPM", self.bpm.as_str(),  &color),
-            //Field(" Smpl", format!("{:.1}k", self.current_sample).as_str(), &color),
-            Field(" Rate", format!("{}", self.sr).as_str(), &color),
             //Field(" CPU%", format!("{:.1}ms", self.perf).as_str(), &color),
         ]),
-        col!([
-            Field(" Chunk", format!("{}", self.chunk).as_str(), &color),
-            Field("   Lag", format!("{:.3}ms", self.latency).as_str(), &color),
-        ]),
-    ])))
+    ]))))
 });
+struct TransportField<'a>(&'a str, &'a str, &'a ItemPalette);
+render!(<Tui>|self: TransportField<'a>|row!([
+    Tui::fg_bg(self.2.lightest.rgb, self.2.base.rgb,    Tui::bold(true, self.0)),
+    Tui::fg_bg(self.2.base.rgb,     self.2.darkest.rgb, "▌"),
+    Tui::fg_bg(self.2.lightest.rgb, self.2.darkest.rgb, format!("{:>10}", self.1)),
+    Tui::fg_bg(self.2.darkest.rgb,  self.2.base.rgb,    "▌"),
+]));
 pub struct PlayPause(pub bool);
 render!(<Tui>|self: PlayPause|Tui::bg(
     if self.0{Color::Rgb(0,128,0)}else{Color::Rgb(128,64,0)},