Ableton/Live/UG/12 Editing MPE/02 Editing MPE Data
- Click a note while the Note Expression tab is open to bring its Pitch, Slide and Pressure envelopes forward; Velocity and Release Velocity appear as markers. Other notes are greyed out.
Breakpoints and segments
- Click a line segment to add a breakpoint; click a breakpoint to delete it. Values show while creating, hovering or dragging.
- Right-click a breakpoint → Edit Value to type an exact value; right-click a preview breakpoint → Add Value to create one at an exact value.
- Drag a breakpoint or segment to move it. Selected breakpoints move together.
Option-drag (Mac) / Alt-drag (Windows) a segment to curve it; double-click with the same modifier to straighten it.- Hold
Shift while dragging to lock to one axis, or to fine-tune vertically. - Dragging a breakpoint horizontally over its neighbour removes the neighbour.
Grid
- The grid is off by default in this tab and its settings are saved with the clip, separate from the other tabs. Turn it on with Snap to Grid or
Cmd+4 (Mac) / Ctrl+4 (Windows).
Whole-note edits
- Slide, Pressure, Velocity and Release Velocity envelopes can be scaled across the whole note: click outside the note, hover until the envelope turns blue, then drag up or down. Pitch can't be scaled this way.
Cmd+A / Ctrl+A on an envelope selects all its breakpoints so they can be shifted by the same amount.- Moving or stretching a note moves or stretches its expression with it.
- Pitch breakpoints snap to the nearest semitone while holding
Cmd (Mac) / Alt (Windows) with the grid off. - Pitch envelopes hide when Fold is on;
Z zooms to fit the pitch bend in the time selection; Clear All Envelopes in the context menu removes a selected note's expression.
