I'm loving the isem. It's a great sounding app.
I'm hitting a few bumps in the road with midi though.
I'm using steppolyarp to drive the isem. Periodically, the isem will stop producing sound. I can't tell if isem is no longer receiving midi or if the audio engine is cutting out. It seems like this is more likely to happen when I'm changing modulation sources in steppolyarp.
Also, I can't figure out a way to modulate isem's parameters with velocity. When velocity is set as mod source in matrix and velocity modulation is sent from steppolyarp, isem doesn't react. Exact same modulation sent to other synths works as expected.