Thursday 17 April, 8pm
(BBC broadcast 26 April)

No synthesizers. A deck with three arms, a 60s piece for phono cartridges and a software music machine. These instruments avoid the clichés of convention.

Janek Schaefer, audio architect, invented the turntable with three arms to produce tri-phonic drones, noise and field recordings.

Quartet Electronische play John Cage's Cartridge Music (1960), a phonographic blitz composed before DJs were invented. Indeterminate, seminal, cool.

Oval, the original skittering glitch merchants. Kaleidoscopic Morse code.

In the bar, Socket - the multimedia collective from Bristol. Their 'Mighty Jungulator' software turns anything into an audio engine on full throttle.