phuture · acid territory
chicago 4×4 909 floor under a moog acid-bass riff in A minor. tape on for warmth, delay off — keep the 303 dry like the original.
phuture · acid territory
chicago 4×4 909 floor under a moog acid-bass riff in A minor. tape on for warmth, delay off — keep the 303 dry like the original.
chain order is fixed: drive → tape → delay → plate. matches nick's real signal flow.
the lesson of acid tracks isn't the 303 — it's that the 909 SITS STILL so the 303 can move. dj pierre's machine wasn't supposed to make this sound. it was broken, the previous owner tried to use it as a normal bass synth, the filter envelope was modulating wildly because the patch was wrong. they hit record anyway. that "wrong" is the whole genre.
the 909 floor here is the simplest possible thing: kick on every beat, snare on 2 and 4, closed hat on every 8th, open hat on the offbeat. patient. nothing fancy. that's the whole point — if your drums are also wandering, you've got two focal points fighting each other. pick one. let the other be the floor.
the moog acid-bass riff approximates what a 303 does: square wave fed into a fast filter envelope with high resonance, accent notes pushing the envelope sharper. the pattern walks root → root → octave → 5 → b7 → root → 3 → root. that walk is the canonical 303 acid figure — minor key, root anchor, octave punctuation, the b7 + 3 for tension.
tape on, delay off. the original was DRY. that filter squeal needs space to breathe — wet it up and you bury the character. if you want to push it harder, add drive AFTER the tape. that gives you the late-90s aphex / hardfloor acid territory.
people speed it up. acid sat at 125 because the floor needed time to swallow each kick. push past 130 and you lose the trance.
related rooms in the spacepit
- the canon · hand-authored lessonPhuture · Acid Tracks · 1987
patient 4×4 with a 16% swing in the hat pocket. 303 wanders. don't crowd it.
- the lab · live machinethe 909 room →
dial in the patches that drive this pattern — TR-909 voice circuitry, knob by knob.
- the lab · live machinethe moog room →
dial in the patches that drive this pattern — Minimoog filter envelope, knob by knob.
other patterns in the catalog
- parliament · flash light bassp-funk · 110 bpm
- frankie knuckles · warehouse floorchicago house · 122 bpm
- boom-bap · sp-1200 kitgolden era hip-hop · 92 bpm
- detroit · model 500 territorydetroit techno · 130 bpm
- footwork · chicago 160chicago footwork / juke · 160 bpm
- dub · lee scratch territoryjamaican dub / roots reggae · 76 bpm
- trap · 808 sub + half-timeatlanta trap · 140 bpm
- DX7 · quincy '85 territory80s pop r&b · 80 bpm
- C64 SID · rob hubbard territory8-bit / chiptune · 140 bpm
- TR-606 · Sheffield industrialindustrial / post-punk electronic · 130 bpm
- DMX · sucker MCsgolden era hip-hop / boom-bap origin · 96 bpm
- Linn LM-1 · when doves cryminneapolis funk / pop · 109 bpm
- 707 · voodoo ray acid houseuk acid house · 122 bpm
- 808 · planet rock electroelectro / electro-funk · 116 bpm
- 808 · sexual healing balladquiet storm / 808 r&b · 95 bpm
- modular · berlin school territoryberlin school / cosmic · 100 bpm