On the flipside I’ve never not used Dramno standalone as I can use it to host AUV3 instruments and FX). It completely replaced AUM as host in my setup.
IMO Drambo’s sequencer is truly exceptional - like the Octatrack on steroids. It would meet all your requirements and then some. But you’ll want a controller - a Beatstep Pro controlling Drambo could be the ticket.
Another option is to ignore Drambo and sequence your apps directly from the Beatstep, but for poly work use SoundPrism or Scaler to transform mono sequences into chords .
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