Right...it's designed as a 'scratchable' piezo mic module. Given what you want to do musically, make sure to get an external input that has an envelope follower. That way, you can extract the incoming amplitude envelope and use it as a CV elsewhere, such as on a filter cutoff or VCA CV. Been in love with that capability since way back, working with it on an ARP 2600 which has it in conjunction with its input preamp.