Another with the M32 featuring transducers. I had known in principle that a contact speaker could be used as a mic but never really tried it out. Here the M32 is outputting through a big transducer on a cardboard box and a little one is picking up the sound, returning it to the M32. The input passes through the filter, the resonance of which is being modulated by the LFO and envelope generator (and some knob twiddling). Recorded on a Zoom H4N.