Chord memorizer objects overview
A chord memorizer maps individual notes to chords. You can assign one chord to each pitch class (to C, C#, D, and so on).
The octave of the incoming note determines the octave of the resulting chord. A chord can have 0–12 notes in it. (Zero and one-note chords can be useful for creating scale-filters and scale-correctors).
The easiest way to use a chord memorizer is to connect its output to the instrument that you want to play the chords through, and assign it to a track. You can, of course, place it anywhere else in the MIDI signal path.
Create a new chord memorizer
Choose New > Chord Memorizer.