Coupling Cookbook

Coupling amount guide:

• 0.05–0.15 — Subliminal. Feel it, don't hear it clearly. Preferred for Guru Bin.
• 0.15–0.35 — Audible but blended. Natural interaction.
• 0.35–0.60 — Strong. Both engines clearly influence each other.
• 0.60–1.0 — Extreme. One engine significantly transforms the other.

Recipe Library

The Heartbeat

ONSET → OPAL | GrainTrigger | amount: 0.25

Onset's kick transients trigger OPAL's grain release — every kick spawns a cloud of granular texture. The percussion becomes the genesis of the atmosphere. Add a gentle FilterFrequencyModulation return (OPAL → ONSET, 0.08) for the atmosphere to whisper back to the rhythm. Genre: Lo-fi hip hop, ambient electronic, cinematic Preset in library: Yes — "Pulse Bloom" (Entangled/Heartbeat.xometa)

The Drift Anchor

ODYSSEY → OPAL | FilterFrequencyModulation | amount: 0.20

Odyssey's drifting filter movement slowly opens and closes OPAL's grain density filter. The pad responds to the drift engine's own evolution, creating coupled motion that sounds like two organisms breathing together. Genre: Ambient, neo-classical, meditation Preset in library: Yes — "Tidal Breath" (Entangled/DriftAnchor.xometa)

The Chaos Leash

OUROBOROS → ONSET | TemporalModulation | amount: 0.30

Ouroboros's strange attractor bifurcations time-modulate ONSET's voice trigger timing — the drums drift in and out of quantization based on the attractor's phase. At low amounts, it's a subtle groove feel. At high amounts, the rhythm deconstructs. Genre: Glitch, post-industrial, generative, experimental Preset: "Controlled Chaos" (Entangled/ChaosLeash.xometa)

The Whisper Mirror

OPAL → OVERDUB | AudioToBuffer | amount: 0.40

OPAL's granular clouds are captured as audio and fed into Overdub's tape delay input — the granular texture gets repeated, degraded, and smeared through dub FX. The result is organic layers with tape character. Overdub's spring reverb adds spatial depth to OPAL's already-spatial textures. Genre: Dub techno, ambient dub, tape music Preset: "Tape Memory" (Entangled/WhisperMirror.xometa)

The Shore System

OSPREY → OSTERIA | SpectralShaping | amount: 0.18 (bidirectional)

The ShoreSystem: two engines that share a 5-coastline cultural DNA exchange spectral content across the coupling bus. They carve spectral space for each other, preventing masking. When Osprey emphasizes treble, Osteria automatically shifts toward lower-mid warmth. Natural stereo separation emerges without manual panning. Genre: Global fusion, world music, multi-cultural Preset: "Five Coasts" (Entangled/ShoreSystem.xometa)

The Formant Dialogue

ORACLE → ORGANON | ResonanceControl | amount: 0.22

Oracle's GENDY stochastic synthesis modulates Organon's filter resonance — the metabolic synthesis engine's resonance becomes a function of Oracle's probability distributions. Unexpected harmonic peaks appear and dissolve according to mathematical distributions rather than predetermined patterns. Genre: Experimental, academic, generative Preset: "Probabilistic Vowel" (Entangled/FormantDialogue.xometa)

The Neon / Axolotl

ODDFELIX → ODDOSCAR | WaveshapeModulation | amount: 0.15

The primordial coupling. feliX's surface-transient brightness modulates Oscar's deep waveshaping — the neon tetra's shimmer disturbs the axolotl's depth. At low amounts: life. At high amounts: dissonant transformation. The bookend coupling — the entire mythology in one patch. Genre: Any — this is the foundation coupling

The Prism Stack

OVERWORLD → OPAL → OVERDUB (chain)

Three-engine chain: Overworld's ERA triangle generates the harmonic source → Opal granularizes it → Overdub tapes it. Each engine processes the previous engine's output. The result is chip-granular-dub — genre collision as sonic identity. Coupling path: Overworld AudioToBuffer → Opal | Opal AudioToBuffer → Overdub Preset: "Signal Chain" (Entangled/PrismStack.xometa)

Design Mode

When the user wants to design a new coupling (not found in the library), the Cookbook:

1. Reads both engine architectures — what each engine outputs (spectral character, amplitude envelope, modulation signals)
2. Matches output to CouplingType — what OPAL outputs (granular clouds) maps to what inputs (GrainTrigger, AudioToBuffer, FilterFrequency)
3. Recommends coupling direction — which engine should be source, which target
4. Suggests starting amount — 0.08-0.15 is almost always the right starting point (subliminal interaction)
5. Predicts the sound — based on source character × target architecture × coupling type
6. Proposes a preset name and description — following XO_OX naming conventions

Design Output Format

COUPLING DESIGN: {Engine A} → {Engine B}

Coupling type: {CouplingType}
Direction: {Engine A} is source, {Engine B} is target
Recommended starting amount: {0.12}

Why this works:
- {Engine A} produces: {what it outputs — e.g., "rhythmic transients with 80-300Hz content"}
- {Engine B} accepts: {what target's FilterFrequency input does — e.g., "maps amplitude to filter cutoff range"}
- The interaction: {what emerges — e.g., "each kick opens a low-pass sweep on the pad, creating rhythmic filter pumping"}

Sound prediction:
{2-3 sentences describing what a producer will hear}

Risk:
{any coupling interactions that could cause feedback, CPU overload, or extreme output levels}

Suggested preset name: {evocative name}
Suggested description: {2-3 sentences for the .xometa file}

Quick Reference by Genre