Manual

622 Chapter 28 Creating Apple Loops
There is, however, a solution:
1 Cut the (audio) Apple Loop at the precise positions of any chord changes.
2 Match the chords displayed in the Chord Track with the chord progression in the cut
Apple Loop files by manually entering the chords of each section in the Chord track.
The individual Apple Loop parts will then be transposed accordingly.
3 Enter the inverted Transposition values of the chord root note changes in the Region
Parameter box of each section, so that playback of the Apple Loop parts will match the
original Apple Loop file.
As an example, assuming a default project key of C:
 The (audio) Apple Loop contains a chord progression with root notes of: C, F, G, and
C. Cut it at these chord change positions. This will result in four regions.
 Enter C, F, G, and C at the corresponding positions in the Chord track. Assuming the
original key is C, this is equivalent to a transposition of the second region by +5 and
the third region by +7 semitones. If you played the entire part at this point, the
original audio material would be transposed by the amounts just entered in the
Chord track, which isn’t what you want!
 Set the Transposition value of the second region to –5, and of the third region to –7
in their respective Region Parameter boxes.
Playback of the whole part will now sound as it did before the cuts, and the correct
chords are displayed in the Chord track.
Transposition Track
Transposition events are closely linked to the progression of the chord root notes in the
Chord track: Changing a chord root will be reflected in the Transposition track and
vice-versa. Any alteration or creation of a transposition event will generate or alter the
corresponding chord in the Chord track. All Apple Loops and MIDI regions will be
pitch-shifted accordingly.
Note: Standard 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).
The global Transpose track transposes Apple Loops used on audio tracks by a
maximum of ±36 semitones. This is a designed limitation, as Apple Loops don’t sound
that great when transposed over a greater range. This is also true for the Transposition
parameter of the Region Parameter box.