Parse and build music intervals in shorthand notation

Guitar Chord SVG Diagram Generator

Type-safe WebAssembly bindings for Signalsmith Stretch pitch-shifting and time-stretching

Interaction sounds for the web. No audio files. No config. One import.

Music notation utilities

Sheet-api is library, that helps manage sheet formats, handling extended chords and transposing.

Transposes musical chords in arbitrary text.

A songsheet interpreter

Music theory utilities for chordkit — transpose, scales, chord identification, and more

Canonical pitch-shifting algorithms: phase vocoder, peak-locked, transient-aware, PSOLA, WSOLA, granular, PaulStretch, SMS, HPSS, formant, sampler, hybrid

Framework-agnostic UI toolkit for creating, editing, and displaying chord-over-lyric song sheets, with switchable chord diagrams for piano, guitar, and ukulele.

A song in fourteen interface cues — every sound synthesized live by cuelume's recipes, repitched sampler-style. Open index.html and press play.

Playing mp3 files and tts sentences on Chromecast and Sonos devices (node v8+ only)

Formant-preserving pitch shift via cepstral envelope re-imposition

Transposes musical chords in arbitrary text.

Offline time-stretching and pitch-shifting with Rubber Band, returning an AudioBuffer

Sampler-style pitch shift — sinc-interpolated fractional-stride resample (no time preservation)

Transient-aware phase vocoder pitch shift with attack preservation

Easily convert text to speech using Google Wavenet voices on Node-RED.

procedurally generated jukebox