10.6

193Logic Pro Effects
Use the Logic Pro Chord Trigger MIDI plug-in
Chord Trigger is straightforward to use: choose a mode (single or multi), set a chord trigger
range, select a trigger key, then set up a chord. You can also transpose chords and quickly
assign multiple chords—onscreen or with your MIDI keyboard.
Define the chord trigger range
The shaded chord trigger range is shown on the upper keyboard. Incoming MIDI notes
that fall within this range are interpreted as trigger keys that play the chord (Single Chord
mode) or the chords (Multi Chord mode) assigned to them. Chords can be assigned to
keys within the chord trigger range. Incoming MIDI notes that fall outside the defined
chord trigger range are passed through Chord Trigger unaffected. This allows you to
play a melody with the right hand while triggering/transposing memorized chords with
the left, for example.
• In Logic Pro, drag the handles of the chord trigger range bar above the upper keyboard
to define a keyboard range.
• In Single Chord mode: Playing a MIDI note (or clicking the upper keyboard) within
the defined chord trigger range plays and transposes a single memorized chord. The
transposition is performed in relation to the trigger key the chord is assigned to. For
example, if a chord is assigned to C2, playing a D2 transposes the chord upward by
two semitones. Playing a B1 transposes the chord down by a semitone.
• In Multi Chord mode: Playing a MIDI note (or clicking the upper keyboard) within the
defined chord trigger range triggers the chord that is memorized for the played key.
Keys that do not have a chord assigned to them are silent when played.
Note: If the chord trigger range is made shorter, memorized chords that fall outside the
range become inaccessible but are not deleted. Lengthening the chord trigger range
makes assigned chords accessible again.