x0xb0x plays some spooky piano

YouTube via neandrewthal
"The melody is created by two VCO's, one being fed the CV out of the x0xb0x sampled second clock pulse and the other one, the same thing sampled every third clock pulse. They go through a lowpass filter which is opened by an envelope every third clock pulse and on to the neural agonizer to spookify things." There's a KORG Polysix in there as well.