Roger Linn's 1979–80 LM-1 introduced machine swing by delaying every other quantised step

The swing/shuffle function used in virtually all modern DAWs and drum machines traces to Roger Linn’s LM-1 Drum Computer (introduced 1979–80), where it was called ‘shuffle.’ Programmable machines like the TR-808 and LinnDrum kept perfect time but sounded sterile precisely because every hit landed exactly on the grid; Linn recognised this and added a control that takes a perfectly quantised pattern and delays the playback of every other step by a fixed amount, approximating a human drummer’s swing timing but applied uniformly and repeatably. This reframes swing not as a stylistic add-on but as the original engineering answer to machine sterility. By the mid-1980s most drum-machine makers and sequencer developers had adopted the same percentage-based system, and its principle has stayed essentially unchanged for 45+ years — a measure of how effective the idea is at adding groove to electronic patterns. Linn carried the same timing innovation into the Akai MPC, which is the most direct historical path from jazz swing to modern electronic groove tools.

Examples

The LinnDrum’s swing setting nudged offbeat hi-hats late, giving robotic patterns a shuffle. The Akai MPC preserved and extended Linn’s percentage-based swing, and a famous MPC swing amount produced the ‘light bounce’ feel of early-90s hip-hop. Modern Ableton and Logic swing knobs are direct descendants.

Assessment

Explain mechanically what Linn’s LM-1 swing function does to a quantised pattern, and why 1980s drum machines were called sterile. Name the sampler Linn later built that inherited the same swing system, plus one modern DAW whose swing control descends from it.