I was thinking about putting a bunch of cheap piezo contact microphones/drum triggers on my vuvuzela if this thermomeatstrument doesn't work. But, I would have to solder them to something easily plugged into an amplifier, and I keep getting hitched up on that part: how do a bunch of signals get put together conveniently to be amplified in a single channel, and not have it stink or blow up an output transformer? The piezos are actually pretty cheap; they just don't have adapters, hence the mild confusion, and who can stop at just one? More bad ideas to follow meat and sound.