Apple Logic Pro 8 - Manual (Page 663)

Chapter 32 Editing Transposition With the Chord and Transposition Track 663
MIDI events will only be transposed if the No Transpose checkbox is inactive in the
respective Track Parameter boxes.
Apple Loops
Apple Loops can contain information about the key they are in, and can be transposed
automatically. Regular audio regions (audio regions that are not Apple Loops) will not
be affected. Nor will Apple Loops that do not have a key definition (drum loops, for
example). For full details, see the Chord track description in the Apple Loops chapter on
page 621.
Creating and Editing Transposition and Chord Events
Creating and editing of transposition events works similar to standard MIDI events.
To create a transposition event in the Transposition track, do one of the following:
m Click with the Pencil tool at the desired position in the Transposition track.
m Hold Control-Option-Command, click the desired position in the Transposition track,
enter the desired transposition value in the text field, then press Return.
A transposition event of the typed value will be created at the clicked position.
To change the transposition value of a transposition event, select it by clicking it, then
drag it up or down.