Apple Logic Pro 9 - Manual (Page 1052)

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Click the event with the Eraser tool.
Transposition events can be copied using the standard Copy and Paste procedures or by
dragging them with the mouse while holding Option.
You can also copy or move multiple transposition events simultaneously, which can be
useful for repeated project sections.
Using the Chord Track to Analyze MIDI Regions
You can use the Analyze button in the Chord track to analyze the chords in a MIDI region.
Select a MIDI region (preferably one containing complete chords) and click the Analyze
button in the Chord track header. The MIDI region is analyzed, with the resulting chords
appearing in the Chord track. This also works for several subsequent regions. Alternatively,
you can drag the regions onto the Chord track.
Note: Keep in mind that the chords in the Chord track are events, they affect the playback
transposition of MIDI events and Apple Loops. Make sure that you only use the Chord
track if you really want to use it consequently; once you use it, it always affects your
composition. As an example: When you analyze your project, then copy a region without
copying the chord track events …; you should not use it if you only want to display the
chords in your project; use the Marker track then—or the Score Editor text chord symbols.
Working in the Change Display Only Mode
You might come across situations in which there are incorrect or missing chords in the
Chord track. For example, you record a MIDI region, select it and use the Chord track’s
Analyze button. Normally this should work fine, as the analysis algorithm is rather
intelligent and knows all about harmonics. If the result of the analysis process unexpectedly
doesn’t comply with your recording, Logic Pro provides you with an easy solution: the
Chord track’s Change Display Only mode. If you activate this mode by clicking the Change
Display Only option in the Chord track, you can adjust the chords to match what you’re
actually hearing (the transposition events in the Transposition track are adapted
accordingly). All changes applied to chords in the Chord track while the Change Display
Only mode is active will have no result on the playback of the corresponding MIDI
regions—these changes will only adapt the chords displayed in the Chord track to match
the chords played in the MIDI region.
The Change Display Only mode does not work with Apple Loops used on audio tracks.
For full details, see
Using the Chord Track with Apple Loops .
Inserting Chord Symbols in the Score
The chord symbols displayed in the Chord track can be inserted into the Score Editor
(and printed):
1052 Chapter 35 Editing Transposition with the Chord and Transposition Tracks