diff --git a/tek/src/cli.rs b/tek/src/cli.rs
index 8d131239..bfdd714b 100644
--- a/tek/src/cli.rs
+++ b/tek/src/cli.rs
@@ -193,11 +193,10 @@ impl Tek {
             scenes: vec![],
             ..Self::new_clock(jack, bpm, sync_lead, sync_follow, midi_froms, midi_tos)?
         };
+        tek.arranger = Default::default();
+        tek.selected = Selection::Clip(1, 1);
         tek.scenes_add(scenes);
         tek.tracks_add(tracks, Some(track_width), &[], &[]);
-        tek.selected = Selection::Clip(1, 1);
-        tek.arranger = Default::default();
-        tek.redraw_arranger();
         Ok(tek)
     }
 }
diff --git a/tek/src/device.rs b/tek/src/device.rs
new file mode 100644
index 00000000..e69de29b
diff --git a/tek/src/keys.rs b/tek/src/keys.rs
index 38e833d9..c376bd3e 100644
--- a/tek/src/keys.rs
+++ b/tek/src/keys.rs
@@ -4,8 +4,6 @@ pub const KEYS_CLIP:  &str = include_str!("keys_clip.edn");
 pub const KEYS_TRACK: &str = include_str!("keys_track.edn");
 pub const KEYS_SCENE: &str = include_str!("keys_scene.edn");
 pub const KEYS_MIX:   &str = include_str!("keys_mix.edn");
-pub struct Keymaps {
-}
 handle!(TuiIn: |self: Tek, input|Ok({
     // If editing, editor keys take priority
     if self.is_editing() {
diff --git a/tek/src/keys_ins.rs b/tek/src/keys_ins.rs
index fd443d18..1cccea03 100644
--- a/tek/src/keys_ins.rs
+++ b/tek/src/keys_ins.rs
@@ -6,6 +6,7 @@ atom_command!(InputCommand: |app: Tek| {
 command!(|self: InputCommand, app: Tek|match self {
     Self::Add => {
         app.midi_ins.push(JackMidiIn::new(&app.jack, &format!("M/{}", app.midi_ins.len()), &[])?);
+        app.redraw_arranger();
         None
     },
 });
diff --git a/tek/src/keys_outs.rs b/tek/src/keys_outs.rs
index 6d1b3235..333aa243 100644
--- a/tek/src/keys_outs.rs
+++ b/tek/src/keys_outs.rs
@@ -6,6 +6,7 @@ atom_command!(OutputCommand: |app: Tek| {
 command!(|self: OutputCommand, app: Tek|match self {
     Self::Add => {
         app.midi_outs.push(JackMidiOut::new(&app.jack, &format!("{}/M", app.midi_outs.len()), &[])?);
+        app.redraw_arranger();
         None
     },
 });
diff --git a/tek/src/lib.rs b/tek/src/lib.rs
index 90c84425..56705877 100644
--- a/tek/src/lib.rs
+++ b/tek/src/lib.rs
@@ -8,6 +8,7 @@
 #![feature(trait_alias)]
 mod cli;           pub use self::cli::*;
 mod audio;         pub use self::audio::*;
+mod device;        pub use self::device::*;
 mod keys;          pub use self::keys::*;
 mod keys_clip;     pub use self::keys_clip::*;
 mod keys_ins;      pub use self::keys_ins::*;
diff --git a/tek/src/model.rs b/tek/src/model.rs
index aed7608e..64682aae 100644
--- a/tek/src/model.rs
+++ b/tek/src/model.rs
@@ -111,77 +111,6 @@ provide!(Selection: |self: Tek| {
     },
 });
 impl Tek {
-    pub fn scenes_add (&mut self, n: usize) -> Usually<()> {
-        let scene_color_1 = ItemColor::random();
-        let scene_color_2 = ItemColor::random();
-        for i in 0..n {
-            let _ = self.scene_add(None, Some(
-                scene_color_1.mix(scene_color_2, i as f32 / n as f32).into()
-            ))?;
-        }
-        Ok(())
-    }
-    pub fn scene_add (&mut self, name: Option<&str>, color: Option<ItemPalette>)
-        -> Usually<(usize, &mut Scene)>
-    {
-        let scene = Scene {
-            name:  name.map_or_else(||self.scene_default_name(), |x|x.to_string().into()),
-            clips: vec![None;self.tracks().len()],
-            color: color.unwrap_or_else(ItemPalette::random),
-        };
-        self.scenes_mut().push(scene);
-        let index = self.scenes().len() - 1;
-        Ok((index, &mut self.scenes_mut()[index]))
-    }
-    pub fn scene_default_name (&self) -> Arc<str> {
-        format!("Sc{:3>}", self.scenes().len() + 1).into()
-    }
-    pub fn tracks_add (
-        &mut self, count: usize, width: Option<usize>,
-        midi_from: &[PortConnect], midi_to: &[PortConnect],
-    ) -> Usually<()> {
-        let jack = self.jack().clone();
-        let track_color_1 = ItemColor::random();
-        let track_color_2 = ItemColor::random();
-        for i in 0..count {
-            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), midi_from, midi_to)?.1;
-            if let Some(width) = width {
-                track.width = width;
-            }
-        }
-        Ok(())
-    }
-    pub fn track_add (
-        &mut self, name: Option<&str>, color: Option<ItemPalette>,
-        midi_froms: &[PortConnect],
-        midi_tos:   &[PortConnect],
-    ) -> Usually<(usize, &mut Track)> {
-        let name = name.map_or_else(||self.track_next_name(), |x|x.to_string().into());
-        let mut track = Track {
-            width:  (name.len() + 2).max(12),
-            color:  color.unwrap_or_else(ItemPalette::random),
-            player: MidiPlayer::new(
-                &format!("{name}"),
-                self.jack(),
-                Some(self.clock()),
-                None,
-                midi_froms,
-                midi_tos
-            )?,
-            name,
-            ..Default::default()
-        };
-        self.tracks_mut().push(track);
-        let len = self.tracks().len();
-        let index = len - 1;
-        for scene in self.scenes_mut().iter_mut() {
-            while scene.clips.len() < len {
-                scene.clips.push(None);
-            }
-        }
-        Ok((index, &mut self.tracks_mut()[index]))
-    }
     fn clip (&self) -> Option<Arc<RwLock<MidiClip>>> {
         self.scene()?.clips.get(self.selected().track()?)?.clone()
     }
@@ -190,12 +119,6 @@ impl Tek {
             clip.write().unwrap().toggle_loop()
         }
     }
-    pub fn track_del (&mut self, index: usize) {
-        self.tracks_mut().remove(index);
-        for scene in self.scenes_mut().iter_mut() {
-            scene.clips.remove(index);
-        }
-    }
     fn activate (&mut self) -> Usually<()> {
         let selected = self.selected().clone();
         match selected {
diff --git a/tek/src/model_scene.rs b/tek/src/model_scene.rs
index c8bf0e9c..8099cf12 100644
--- a/tek/src/model_scene.rs
+++ b/tek/src/model_scene.rs
@@ -1,4 +1,32 @@
 use crate::*;
+impl Tek {
+    pub fn scenes_add (&mut self, n: usize) -> Usually<()> {
+        let scene_color_1 = ItemColor::random();
+        let scene_color_2 = ItemColor::random();
+        for i in 0..n {
+            let _ = self.scene_add(None, Some(
+                scene_color_1.mix(scene_color_2, i as f32 / n as f32).into()
+            ))?;
+        }
+        self.redraw_arranger();
+        Ok(())
+    }
+    pub fn scene_add (&mut self, name: Option<&str>, color: Option<ItemPalette>)
+        -> Usually<(usize, &mut Scene)>
+    {
+        let scene = Scene {
+            name:  name.map_or_else(||self.scene_default_name(), |x|x.to_string().into()),
+            clips: vec![None;self.tracks().len()],
+            color: color.unwrap_or_else(ItemPalette::random),
+        };
+        self.scenes_mut().push(scene);
+        let index = self.scenes().len() - 1;
+        Ok((index, &mut self.scenes_mut()[index]))
+    }
+    pub fn scene_default_name (&self) -> Arc<str> {
+        format!("Sc{:3>}", self.scenes().len() + 1).into()
+    }
+}
 pub trait HasScenes: HasSelection + HasEditor + Send + Sync {
     fn scenes (&self) -> &Vec<Scene>;
     fn scenes_mut (&mut self) -> &mut Vec<Scene>;
diff --git a/tek/src/model_track.rs b/tek/src/model_track.rs
index 235e8d84..3b898af5 100644
--- a/tek/src/model_track.rs
+++ b/tek/src/model_track.rs
@@ -1,4 +1,59 @@
 use crate::*;
+impl Tek {
+    pub fn tracks_add (
+        &mut self, count: usize, width: Option<usize>,
+        midi_from: &[PortConnect], midi_to: &[PortConnect],
+    ) -> Usually<()> {
+        let jack = self.jack().clone();
+        let track_color_1 = ItemColor::random();
+        let track_color_2 = ItemColor::random();
+        for i in 0..count {
+            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), midi_from, midi_to)?.1;
+            if let Some(width) = width {
+                track.width = width;
+            }
+        }
+        self.redraw_arranger();
+        Ok(())
+    }
+    pub fn track_add (
+        &mut self, name: Option<&str>, color: Option<ItemPalette>,
+        midi_froms: &[PortConnect],
+        midi_tos:   &[PortConnect],
+    ) -> Usually<(usize, &mut Track)> {
+        let name = name.map_or_else(||self.track_next_name(), |x|x.to_string().into());
+        let mut track = Track {
+            width:  (name.len() + 2).max(12),
+            color:  color.unwrap_or_else(ItemPalette::random),
+            player: MidiPlayer::new(
+                &format!("{name}"),
+                self.jack(),
+                Some(self.clock()),
+                None,
+                midi_froms,
+                midi_tos
+            )?,
+            name,
+            ..Default::default()
+        };
+        self.tracks_mut().push(track);
+        let len = self.tracks().len();
+        let index = len - 1;
+        for scene in self.scenes_mut().iter_mut() {
+            while scene.clips.len() < len {
+                scene.clips.push(None);
+            }
+        }
+        Ok((index, &mut self.tracks_mut()[index]))
+    }
+    pub fn track_del (&mut self, index: usize) {
+        self.tracks_mut().remove(index);
+        for scene in self.scenes_mut().iter_mut() {
+            scene.clips.remove(index);
+        }
+    }
+}
 pub trait HasTracks: HasSelection + HasClock + HasJack + HasEditor + Send + Sync {
     fn midi_ins (&self) -> &Vec<JackMidiIn>;
     fn midi_outs (&self) -> &Vec<JackMidiOut>;
diff --git a/tek/src/view_arranger.edn b/tek/src/view_arranger.edn
index f1394971..7e79d1ad 100644
--- a/tek/src/view_arranger.edn
+++ b/tek/src/view_arranger.edn
@@ -1,3 +1 @@
-(bsp/n (fixed/y 1 :transport)
-  (bsp/s (fixed/y 1 :status)
-    (fill/xy (bsp/a (fill/xy (align/e :pool)) :arranger))))
+(bsp/n (fixed/y 2 :transport) (bsp/s (fixed/y 2 :status) (fill/xy (bsp/a (fill/xy (align/e :pool)) :arranger))))
diff --git a/tek/src/view_arranger.rs b/tek/src/view_arranger.rs
index 75604641..4bd3ad69 100644
--- a/tek/src/view_arranger.rs
+++ b/tek/src/view_arranger.rs
@@ -1,21 +1,6 @@
 use crate::*;
 impl Tek {
 
-    /// Draw the full arranger to the arranger view buffer.
-    ///
-    /// This should happen on changes to the arrangement contents,
-    /// i.e. not on scroll. Scrolling just determines which
-    /// part of the arranger buffer to blit in [view_arranger]
-    pub fn redraw_arranger (&self) {
-        let width  = self.w_tracks();
-        let height = self.h_scenes() + self.h_inputs() + self.h_outputs();
-        let buffer = Buffer::empty(ratatui::prelude::Rect { x: 0, y: 0, width, height });
-        let mut output = TuiOut { buffer, area: [0, 0, width, height] };
-        Content::render(&Bsp::s(self.view_inputs(), Bsp::s(self.view_tracks(),
-            Bsp::n(self.view_outputs(), self.view_scenes()))), &mut output);
-        *self.arranger.write().unwrap() = output.buffer;
-    }
-
     /// Blit the currently visible section of the arranger view buffer to the output.
     ///
     /// If the arranger is larger than the available display area,
@@ -30,12 +15,13 @@ impl Tek {
             let source = self.arranger.read().unwrap();
             for (source_x, target_x) in (x0..x0+w).enumerate() {
                 for (source_y, target_y) in (y0..y0+h).enumerate() {
-                    let source_pos = Position::from((source_x as u16, source_y as u16));
                     let target_pos = Position::from((target_x, target_y));
                     if let Some(target) = to.buffer.cell_mut(target_pos) {
-                        //target.set_bg(Color::Red);
+                        target.set_bg(Color::Rgb(128,0,0));
+                        let source_pos = Position::from((source_x as u16, source_y as u16));
                         if let Some(source) = source.cell(source_pos) {
                             *target = source.clone();
+                            target.set_bg(Color::Rgb(0,128,0));
                         }
                     }
                 }
@@ -43,6 +29,24 @@ impl Tek {
         }))
     }
 
+    /// Draw the full arranger to the arranger view buffer.
+    ///
+    /// This should happen on changes to the arrangement contents,
+    /// i.e. not on scroll. Scrolling just determines which
+    /// part of the arranger buffer to blit in [view_arranger].
+    pub fn redraw_arranger (&self) {
+        let width  = self.w_tracks();
+        let height = self.h_scenes() + self.h_inputs() + self.h_outputs();
+        let buffer = Buffer::empty(ratatui::prelude::Rect { x: 0, y: 0, width, height });
+        let mut output = TuiOut { buffer, area: [0, 0, width, height] };
+        let layout = Bsp::s(self.view_inputs(),
+            Bsp::s(self.view_tracks(),
+                Bsp::n(self.view_outputs(),
+                    self.view_scenes())));
+        Content::render(&layout, &mut output);
+        *self.arranger.write().unwrap() = output.buffer;
+    }
+
     /// Display the current scene scroll state.
     fn scene_scrollbar (&self) -> impl Content<TuiOut> + use<'_> {
         let offset = self.scene_scroll;
@@ -98,26 +102,27 @@ impl Tek {
     }
 
     pub fn view_scenes (&self) -> impl Content<TuiOut> + use<'_> {
-        let editing = self.is_editing();
-        let s       = self.w_sidebar() as u16;
-        let w       = self.w_tracks_area();
-        let w_full  = self.w();
-        let h       = self.h_scenes();
-        let h_area  = self.h_tracks_area();
+        let editing        = self.is_editing();
+        let s              = self.w_sidebar() as u16;
+        let w              = self.w_tracks_area();
+        let w_full         = self.w();
+        let h              = self.h_scenes();
+        let h_area         = self.h_tracks_area();
         let selected_track = self.selected().track();
         let selected_scene = self.selected().scene();
-        Tui::bg(Reset, Bsp::s(self.track_scrollbar(), Bsp::e(self.scene_scrollbar(),
-            Fixed::y(self.h_tracks_area(), row(self.w_tracks_area(), h, s,
-                Map::new(
-                    move||self.scenes_with_colors(editing, h_area),
-                    move|(s, scene, y1, y2, prev): SceneWithColor, _|self.view_scene_name(
-                        w_full, (1 + y2 - y1) as u16, y1 as u16, s, scene, prev)),
-                self.per_track(move|t, track|Map::new(
-                    move||self.scenes_with_track_colors(editing, h_area, t),
-                    move|(s, scene, y1, y2, prev): SceneWithColor, _|self.view_scene_clip(
-                        w, (1 + y2 - y1) as u16, y1 as u16,
-                        scene, prev, s, t, editing, selected_track == Some(t), selected_scene))),
-                () )))))
+        let track_scroll   = self.track_scrollbar();
+        let scene_scroll   = self.scene_scrollbar();
+        Tui::bg(Reset, Bsp::s(track_scroll, Bsp::e(scene_scroll, Fixed::y(h_area, row(w, h, s,
+            Map::new(
+                move||self.scenes_with_colors(editing, h_area),
+                move|(s, scene, y1, y2, prev): SceneWithColor, _|self.view_scene_name(
+                    w_full, (1 + y2 - y1) as u16, y1 as u16, s, scene, prev)),
+            self.per_track(move|t, track|Map::new(
+                move||self.scenes_with_track_colors(editing, h_area, t),
+                move|(s, scene, y1, y2, prev): SceneWithColor, _|self.view_scene_clip(
+                    w, (1 + y2 - y1) as u16, y1 as u16,
+                    scene, prev, s, t, editing, selected_track == Some(t), selected_scene))),
+            () )))))
     }
 
     fn view_scene_name (