More good info–and a great video–thanks! I’ll try to pull together a short recording. The SY-200 has only a guitar/bass setting, which I’ve set on guitar, and the ability to tweak the parameters of individual patches, which helps in some cases. Maybe I should add my 10-channel EQ pedal to the loop or after it. I note that both the audio source C4 and the Zoia synth pedal alternatives have the kind of sensitivity settings you mention and both accept line-level signals. Speaking of which, I suppose I have to ask whether the Mixinglink is overkill for this application. Could I get a cheap Lo-Z to Hi-Z adapter to do the same thing?