KEYDOPE Lite by Mididope plays and varies chords based on single incoming MIDI notes, optionally corrected by scales.
you can checkout for free with the code: maybelater
Based on the incoming MIDI notes, additional interval notes are generated. The resulting chord will be played in the set inversion.
With each newly struck note, the chord can be randomly varied and scale corrected according to the selected root note and scale.
Keydope Lite is included in Mixmux Duo.