Chord substitution is supported by switching between two or more chord dictionaries. A chord dictionary defines the set of chord types that a song can use, by mapping each type to a scale and mode. Substituting a different dictionary alters the harmonic content of all your songs at once, by redefining their chord types. Substitution can be remotely controlled via MIDI, so it's possible to switch dictionaries seamlessly during a performance. For example you might have one dictionary for playing melodies and another dictionary for soloing, with a third dictionary containing unorthodox definitions for playing "out".
Note that for chord substitution to be effective, all chord dictionaries must define the same chord symbols in the same order, otherwise switching performance will be greatly reduced, timing of notes may be disrupted, and audible glitches may result.
To set up basic chord substition, use the following steps:
The names of your chord dictionaries should now appear as items in the Chord Dictionary dialog's Subs menu. To switch to a different chord dictionary, simply select its corresponding menu item. For seamless switching, it's recommended to assign a MIDI controller to the Chord Dictionary MIDI target.