Music theory Packages

Create music with JavaScript and Node.js!

🎼 converts a note (scientific pitch notation) to a frequency

A set of functions for manipulating musical pitches within a given EDO

Find the name of pitch class sets

🎼 Validates a note (scientific pitch notation) and throws errors if needed

A web component for picking keys and scales

a JavaScript music library for easy programmatic music composition

converts integers/indices into musical frequencies based on a scale and a tonic

Music intervals

Play What is a configurable, extensible music theory visualization tool and React component library.

A framework for developing musical ideas

Find the name of pitch class sets

Find any music interval. Enter the note, the interval, and can specify if you want a downward interval. The enharmonically correct note name will be returned.

Module for working with music theory concepts

Scale, interval, and frequency mappings

Guitar and music theory library

A typescript music theory library

Tools and utilities for a generic representation of scales, chords, progressions etc. for use in music software, music related web & mobile apps, VST/VCV plugins and Max for Live devices.

Music theory for MIDI applications

JavaScript (TypeScript) utilities for working with musical pitches and durations in the 12 tone system.