Things I have done and enjoyed:
- Using the SP-404 mk2 with a thru/flex machine to create improvised loops and one-shots.
- Getting experimental with a mic (sm-57) and the FX to create ambient textures, again with. thru/flex machines.
- Running the OT main outs through the SP-404 mk2 and having a wonderful time destroying sounds with FX
Things I have tried and not enjoyed (or rather I need to read the manual to master/realize what the limitations are):
- Getting the OT to do interesting things with the midi on the SP, both FX and sequencing (especially the alluring possibility of polyphony)
- Using the SP-404 as a live effects send using CUE outs returning to a THRU machine
- Using a PICK UP machine to automatically match the tempo of the finger drumming on the SP-404
This is obviously an incomplete list as I am still pretty much in the honeymoon phase. But the SP-404 mk2 offers enough substantial workflow differences that I am glad I got it. I will also say that I am tending to start with the OT and then bring in the SP-404 still and haven’t really explored the possibilities of using the SP-404 as the ‘brain’ in the set-up.
Hope that helps 
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