Pulsar with midi sync is a MUST for me.

But I would add pitch shifting ability for each beat. So it can become Arpeggio like.

Add multiple channels in parallel (or in series why not?)…lets say 2 or 3…..with different measures odd and even…..and multiples and divisions of midi synced tempo…..of either tremolo-vibrato, rhythmic or melodic motifs.

..Also add an insert loop for a delay or reverb or whatever….either before or after the pulsed signal…..

….And since songs are usually structured around 3 chords…..
….add easy nonlinear access to atleast 3 presets of these complex rhythmic and melodic arpeggios..with 3 foot-switches…..

….and you have a super psychedelic …..polyrythmic and polymetric BEAST!
The PPPP: Poly-rhythmic, Poly-metric, Psychedelic, Pulsar

Thanks!
Merry Christmas!