10.6

Table Of Contents
409Logic Pro User Guide
Assign notes to different MIDI channels by pitch
1. In Logic Pro, select the notes you want to reassign by clicking keys on the keyboard
along the left edge of the Piano Roll Editor.
Shift-click to select multiple keys.
Drag across the keyboard to select a range of contiguous pitches.
2. Choose Functions > Set MIDI Channel to Voice Number from the Piano Roll Editor menu
bar.
Logic Pro assigns MIDI channel numbers (in ascending order) to individual note pitches in
the selected MIDI region. The highest note pitch in each chord is assigned as MIDI channel
1, the next note down in each chord channel 2, and so on.
Note: The use of these commands results in changes to the MIDI region, which contains
information spread across multiple MIDI channels, following the operation.
After using the Set MIDI Channel to Voice Number function, you can create a new MIDI
region for each note by using the Edit > Separate MIDI Events > By Event Channel menu
command in the Tracks area. Each region created from this process can then be assigned
to a different track (and channel), allowing different instruments to be assigned for each
voice.
The Automation/MIDI area in the Piano Roll Editor
in Logic Pro
You can create and edit automation data directly in the Piano Roll Editor. To learn more
about using automation, see Overview of automation.
When track-based automation is displayed in the Automation/MIDI area, the displayed
automation curve is identical to the automation curve displayed in the automation lane
in the Tracks area. Any adjustments to the automation curve made in either location is
reflected immediately in the other. However, with region-based automation, you can
choose to display either the automation curve associated with the region in the Tracks area
automation lane or the MIDI data associated with individual notes. Therefore, with region-
based automation it is possible to have the automation lane in the Tracks area showing the
automation curve associated with the region and the Automation/MIDI area displaying MIDI
data associated with each note (or vice versa).