10.6

388Logic Pro User Guide
Edit MIDI regions in the Piano Roll Editor
Overview of the Piano Roll Editor in Logic Pro
The Piano Roll Editor shows the notes in a MIDI region as colored bars in a time grid.
Horizontal lines show the time position, while vertical lines indicate pitch. A keyboard along
the left edge of the Piano Roll Editor provides a reference for the pitches of notes. The info
display after the tool pop-up menus in the Piano Roll Editor menu bar shows the note name
and time position under the pointer.
You can switch the keyboard to an adaptive view, which automatically selects the best
Piano Roll display based on the MIDI region you’ve selected. If all displayed MIDI regions
are played back by an instrument that provides note names, the keyboard is replaced by a
table showing those note names. You can also switch to Collapse Mode view, which shows
only those lanes in the Piano Roll Editor that are used by notes in the MIDI regions you’ve
selected.
The Piano Roll Editor can display the MIDI regions on a track, in a folder, or on multiple
tracks in the project. See View multiple regions in the Piano Roll Editor in Logic Pro.
You can record notes into the Piano Roll Editor directly when the MIDI In button is activated
using step recording techniques. See Use step input recording. Make sure the MIDI Out
button is activated so that you can hear notes that you add, select, or click.
You can open the Piano Roll Editor as a pane in the main window, or as a separate,
resizable window.