experiment: cassette-synth (video)

Video description:

"I build a four step sequencer from a couple of old relays and used this to switch between a couple of podmeters that control the speed of a cassette walkman.
Not sure what to call this, a sampler or a synth, well, doesn't really matter now, does it?
I think the last tape I used is actually not source material from me but from Machinefabriek."