# Moog - Subharmonicon Polyrhythm Drone Case: **Moog 4-tier**. Each unit is used once. Source: original Jack labels from the Subharmonicon User Guide, the Mother-32 Users Manual and the Labyrinth Manual (Moog/inMusic). Signal path explained: [[Patches/Moog/Moog - Subharmonicon Polyrhythm Drone - SignalPath|SignalPath]] Incremental build: [[Patches/Moog/Moog - Subharmonicon Polyrhythm Drone - Build|Build]] ## Modules - Moog Subharmonicon: the drone and its polyrhythms - Moog Mother-32: second ladder filter and slow LFO, VCA held open - Moog Labyrinth: slow random CV brain (its own voice optional) **Cable colors:** [[Cable Colors]] after [Learning Modular](https://learningmodular.com/choosing-patch-cables/): ⚪ Gray 1 V/oct · 🔵 Blue modulation · 🟡 Yellow audio · 🔴 Red gates/triggers · 🟢 Green clock/sync · ⚫ Black external ## Cables 1. 🟡 Yellow · Subharmonicon VCA (out, Eurorack level, 10 V p-p) -> Mother-32 EXT. AUDIO (in) 2. 🔵 Blue · Mother-32 LFO TRI (out, ±5 V) -> Subharmonicon CUTOFF (in) 3. 🔵 Blue · Labyrinth SEQ1 CV (out, −5 to +5 V) -> Subharmonicon VCO 1 SUB (in) (judgment call) 4. 🔵 Blue · Labyrinth SEQ2 CV (out) -> Mother-32 VCF CUTOFF (in) 5. ⚫ Black · Listen at the Mother-32 rear 1/4″ output. ## Starting points - **Subharmonicon:** - TEMPO low, around 9 o'clock. - Set RHYTHM 1 to 2, RHYTHM 2 to 3, RHYTHM 3 to 5 and RHYTHM 4 to 7. Assign RHYTHM 1 and 3 to SEQ 1, and RHYTHM 2 and 4 to SEQ 2. - QUANTIZE on 12-JI, SEQ OCT ±1, and the STEP knobs near center. - SUB 1 FREQ and SUB 2 FREQ (VCO 1) centered, so the SUB input gets both directions, as the guide says. - All six mixer LEVELs around 12 o'clock. CUTOFF 11 o'clock, RESONANCE 10 o'clock. - EG ON. VCA ATTACK 12 o'clock and VCA DECAY 2 o'clock, so swells overlap. Press PLAY. - **Mother-32:** MIX fully CW (EXT only), VCA MODE ON. CUTOFF 1 o'clock, RESONANCE 11 o'clock. LFO RATE slow, about 9 o'clock. - **Labyrinth:** - Press RUN/STOP, TEMPO very low. - SEQ1 CV RANGE 10 o'clock and SEQ2 CV RANGE 11 o'clock. CORRUPT 10 o'clock on both, for slow drift. - Flip a few bits on in each SEQ. VOLUME down, or blend its own out in on a mixer. ## Level notes - Subharmonicon VCA out is 10 V p-p, which is the level the Mother-32 manual wants at EXT. AUDIO. - Mother-32 LFO TRI is ±5 V and Subharmonicon CUTOFF takes −5 to +5 V, so it fits. Back the Subharmonicon CUTOFF knob off if the sweep is too wide. ## What it should sound like A deep, just-intoned organ drone that swells in 2-, 3-, 5- and 7-beat cycles against itself. Every so often the subharmonic interval under VCO 1 jumps as Labyrinth drifts. The Mother-32 ladder rolls the whole thing slowly brighter and darker.