Movements
A section of the piece. Lanes play together on a timeline, and everything that shapes them is on the same screen.
A movement has a tempo, a time signature and a set of lanes. Each lane is one part, and owns three things: a phrase (the notes), a note rack (what happens to the notes before they reach an instrument), and a device rack (the instrument and effects). Clips place a phrase on the lane's timeline and choose which of the phrase's variations plays.


Groups, sends and the master
Lanes fold into groups. A group is a mini master: its members route their whole output through the group's own rack and fader before reaching the parent, and groups nest. Send buses are shared effects racks that lanes send an amount to, pre or post fader, with bus-to-bus sends allowed, feedback included. The master has its own rack and modulation. Mute and solo behave the way they do in Ableton, with a solo inside a soloed group refining it.


One screen
The workspace has the timeline on top and either the Pattern editor (the piano roll) or the mixer below it. Racks open as popovers anchored to the lane, bus or master that owns them, and any rack or pane can pop out into its own window on a second display. There is one transport and one undo history for the whole movement, and a single click on a lane places an edit marker that is both where the next play starts and where ⌘E splits a clip.