Before MIDI, electro producers synced drum machines and sequencers using clock/trigger pulses and Roland Sync cables

MIDI arrived in 1983, but many classic electro tracks predate or ignore it, so producers improvised synchronization. Man Parrish (1982) describes using the 808 to send trigger pulses via its rimshot pattern to advance an analog sequencer step by step. Newcleus synced an 808 and TB-303 via a Roland Sync cable (a proprietary DIN-sync clock). This pre-MIDI constraint forced inventive use of trigger outputs and accent outs as functional clock signals, and shaped the tight, step-based rhythmic vocabulary of the genre.

Examples

Man Parrish: the 808’s rimshot pattern drives the Pro One’s onboard sequencer to the next step. Newcleus: a Roland Sync cable locks the 808 and TB-303. Modern equivalent: MIDI clock, or modular CV/gate, for the same job.

Assessment

Explain two pre-MIDI synchronization techniques used in classic electro and why MIDI made them obsolete. What creative constraint did pre-MIDI sync impose on the rhythmic patterns producers could make?