counterpoint

Composition of short musical pieces with reinforcement learning. To be more detailed, framing of fifth species counterpoint writing as an optimization problem.

Create and visualize temporal canons a'la Conlon Nancarrow

A collection of MuseScore plugins that check species counterpoint, 4-part chorales, intervals, and chords and can automatically create interval and chord ID worksheets.

BachDuet enables a human performer to improvise a duet counterpoint with a computer agent in real time.

Ruby gem for the rudiments of western music theory.

Serious calibration and benchmarking for the `state_collapser` HRL package

Species counterpoint as constraint satisfaction — SAT/UNSAT rules, Laman rigidity, tensor-MIDI output

Ciphers voice leading (armonic intervals and motions) among parts on a music21 score Object

交互式音乐理论学习与练习册，覆盖乐理、和声、视奏、听觉训练、曲式分析和现代音乐分析。

Rule-based Bach instrumental MIDI generator (C++17 + WebAssembly) — fugues, chorale preludes, passacaglias, and more, grounded in counterpoint. Try it in the browser.

Fux's 'Gradus ad Parnassum' species counterpoint exercises

Species counterpoint engine — interval classification, first species rules

C port of counterpoint-engine — species counterpoint rules

An agent for composing species counterpoint

Pure-TypeScript, zero-dependency music theory engine: harmonic analysis, chord detection, chord and scale vocabulary, voicing and counterpoint, reharmonization, and seeded part generation over MIDI note events.

Generate playable, explainable canon variants from monophonic MIDI or MusicXML melodies.

Dual harmonic grid method for counterpoint, accompaniment and polyphony composition. By Jean-Pierre Mallet (JPM) — Open source Apache 2.0

CntrPort is an open-source NCR Counterpoint API wrapper, proxy, and integration framework for extending Counterpoint with custom REST APIs, SQL endpoints, automation, eCommerce, accounting sync, and third-party integrations.

Contra Punctum Validator (CPV)

Species one counterpoint implemented in Answer Set Programming