Apple Logic Express 8 - Manual (Page 788)

788 Chapter 33 Working With Notation
Splitting MIDI Channels Automatically
If you record polyphonic voices as separate passes in real time, you can set your
keyboard or MIDI controller to the appropriate MIDI channel for each voice. This saves
you from editing the channels after the fact. The same applies to step input.
Alternately, you can automatically split MIDI notes using the “Auto split notes in multi
staff chord styles” Score preference.
If this is activated, and the default staff style in the selected Track Parameter box is a
polyphonic style, all played notes are automatically assigned MIDI channels that match
the staff style’s voice assignments. Notes at, and above, the split point are assigned the
channel of the first voice. Notes below are assigned the second voice’s channel (this
feature only works for two voices at a time). This creates a rough, but usable, voice
assignment, which can be edited later.
To split regions that have already been recorded:
1 Select the region.
2 Choose Functions > Note Events > Assign Channels based on Score Split (or use the
corresponding key command).
This assigns the region’s notes to voices in the staff style—according to the Auto Split
pitch in the Score preferences.
Using the Voice Separation Tool
The Voice Separation tool allows you to draw a separation line between notes on a a
staff, thereby assigning them to the MIDI channels of the voices. MIDI channels have to
be pre-defined for each of the voices that you want to separate. This is because
Logic Express needs to know which MIDI channels are assigned to each note.
To use the Voice Separation tool to change the MIDI channel of notes:
1 Select the Voice Separation tool.
2 Draw a line (between notes) where you want to separate the voices.