cheers! i like the direct approach on the op-1 for doing impro (the track is an unprepared impro with an additional eq:d feedback channel on the mixer), but it’s tricky if you aim for some transitions, usually it goes haywire sooner or later… it’s almost like skateboarding or riding a bike or whatever, the more transitions or tricks you aim for, the harder it is to make, or at least get 10 minutes usable recording.
hopefully, at some point having fun goes along with aesthetic purposes 
@Ithacus: nice track, using the radio on the op-1 is really cool.