Chord Pitcher is a Max for Live audio effect that can re-pitch a sound to 4 different ratios in real time, to up to four octaves up or down. This can be great to use with any monophonic instrument, synth or voice to achieve instantaneous chords.
It offers a separate frequency shifter for each voice and everything is automatable. There are also four common chord presets built in, using the first voice as root note.
This way for heaps more Max for Live devices & tips.