Simple Circle of Fifths application showing chords in key, notes in chord, and suggested chord progressions for each key and mode.

Chord Naming App with MIDI Support

🎼 HTML5/WebAudio multi-track songwriting app with chord analysis support! -- https://hlorenzi.github.io/theorytracker/

A music theory app for students to practice their ABRSM grade 5 music theory.

AI powered major scale trainer.

AI powered major triads quiz app.

ChordNova is a powerful open-source chord progression analysis plus generation software with unprecedentedly detailed control over chord trait parameters, that is way above mainstream softwares. Runs on multiple OS (currently Windows and Linux). | 智弦（ChordNova）是清华大学沈智云和星海音乐学院陈文戈共同开发的一款免费开源、功能强大的和弦进行自动生成软件。该软件提供前所未有的特征参数细节控制，远超以三度叠置为基础的主流软件。

Source code for HAA-263831-19 Digital Humanities Advancement Grants (National Endowment for the Humanities)

A web page that gives you random musical keys for practice purposes.

🎸 A web app to visualize scales, chords and arpeggios on all kinds of fretboards.

C# music theory library and Unity app for everything from teaching absolute beginners, to the exploration of cutting edge musical analysis.

A React app mimicking a hardware used back in the days, Step Sequencer for producing music beats with baked in audio samples and custom ones.

A tool to experiment with music harmony, learn music theory and compose music.

🎵 Web application for ear training, music theory on the topic "Musical intervals".

A companion app for songwriters. Uses your liked songs / chord progressions to improve or show substitutions to your own chord progressions.

A declarative toolbox to build interactive musical instruments on web and mobile.

🎚️ (WebApp) Twelve tone matrix visualizer for any given row of any given length.

🕖 (WebApp) Clock diagram visualizer for the twelve tone composition method.

🎵 (WebApp) Modify your music scores note by note. For example, from major to minor!

🎹 (WebApp) Music composition assistant for harmonizations and chord choosing. It also contains free harmony lessons.