MI Rings has 1/2/4 voices I think
-- amethyst

it does but it's not polyphonic in that way. the voice selection impacts how long a strum is allowed to ring out for. up to four notes can overlap before a strum is muted by a new one, but they cannot be played simultaneously as a chord.
-- bigham

I wonder how "close in time" can be the triggers in Rings to trigger different notes and be percived as a Strumed chord