In this video, composer Benn Jordan takes a look at the Polyend PERC MIDI-controlled robotic drum system, and turns his house into a giant, 16-track robotic drum machine along the way.
Note: Jordan discusses pricing, including the price in Pony Biscuits, for the PERC starter kit. The PERC Drumming Machine kit includes one beater, one controller (capable of controlling one beater), one clamp and noiseless power supply. You can daisy-chain as many units over the MIDI protocol as you need.
See the Polyend site for details.