Module term 

The patch term: a typed tree over the v1 module palette.

The Audio/Mod sort distinction is enforced by the Rust type system itself — an ill-sorted term (an LFO where audio is expected, a filter in a modulation slot) is unrepresentable. The grammar prior samples these types directly and the compiler interprets them into a quiver Patch; there is no unvalidated intermediate representation.

All continuous parameters are normalized to [0, 1] (uniform prior support); musical mappings (log cutoff scales, bounded resonance/feedback) live in [crate::compile]. Discrete parameters are small enums.

Structs

AmpEnv

The mandatory amplitude envelope on every voice (ADSR, normalized 0-1).

PatchTree

A complete patch genome: an audio term wrapped in the mandatory voice stage (amp ADSR → VCA → limiter → stereo out, added by the compiler).

Uid

A stable identity for one node, independent of where it sits.

Enums

AudioNode

An audio-sort term: sources at the leaves, processors and mixers above.

DriveMode

Distortion shaping curve.

FilterKind

Filter kind: three SVF responses plus the diode ladder.

ModNode

A modulation-slot term: what drives a processor’s mod input.

ModOp

A unary CV processor: something that sits between a modulator and its destination. Index order matches the #modop categorical.

NoiseColor

Noise color; maps to NoiseGenerator output ports.

PairOp

A binary CV combiner over two modulation terms. Index order matches the #pairop categorical.

TableShape

Wavetable shape. Index order matches the trace-site categorical and quiver’s own WavetableType table, which the table CV selects into.

Waveform

Oscillator / LFO waveform. Index order matches the trace-site categorical and the quiver output-port table.

Constants

QUANT_ROOTS

Root-note names for the quantizer’s root port, which quiver reads as (cv · 11.99) as i32 semitones above C.

QUANT_SCALES

The scales quiver’s ScaleQuantizer selects between, in its own index order — which is not quiver::modules::Scale’s.

RECT_MODES

Rectifier polarities, in the order rmode selects them.

Functions

quant_root_index

Which of QUANT_ROOTS a normalized qroot knob selects.

quant_scale_index

Which of QUANT_SCALES a normalized qscale knob selects — quiver’s own (cv · 6.99) as u8, so the plate and the module cannot disagree.

rect_mode_index

Which of RECT_MODES a normalized rmode knob selects — cell centres on a three-way split, the convention the other quantized knobs use.