let harmony = Engine.new(Palestrina);
fn detect_pitch(buf) -> Note
const MAX_VOICES: usize = 4;
voice_leading.reject_parallels()
struct GuitarInput { onset }
engine.harmonize(note, scale)
fn detect_pitch(
  buf: &[f32]
) -> Option<Note>
let voices =
  counterpoint::
    generate(line, mode);
if interval == Fifth
  && motion == Parallel
  { reject() }
#[inline(always)]
fn onset(
  frame: &Frame
) -> bool
block_size: 128
sample_rate: 48_000
latency_ms: 7.2
// Palestrina
// counterpoint
// rules.rs

Embed widgets — shared engine demo

Below: one harmony engine running invisibly, four widgets reading from it. Click the piano or fretboard, or use your computer keyboard:

  • Z X C V B N M + S D G H J — lower octave (C through B + sharps/flats)
  • Q W E R T Y U I + 2 3 5 6 7 — upper octave
  • + / - — shift octave up / down

Whichever instrument you trigger, the other lights up with the harmonized voices and the chord readout updates. All three surfaces are the same engine.

Chord

—

Piano

Fretboard

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Fretboard (read-only, 24 frets)

Same engine state, no clicks, full neck. Demonstrates theinteractive={false} + frets=24 embed config.

E2A2D3G3B3E43579121517192124