Contrapunctus vs MyMusicTheory

Contrapunctus is a free web platform for music theory, composition, and counterpoint study. Its real-time editor shows Roman-numeral and chord analysis while users write, and identifies part-writing errors and non-chord tones. Compositions can use multiple voices, major, minor, or modal contexts, and sampled-instrument playback. The platform includes an interactive edition of Fux’s Gradus ad Parnassum, with species-counterpoint lessons, an AI tutor, and English and Latin text. Community members can create and solve exercises, share solutions, vote, and earn points toward a 15-rank ladder. Educators can create classes, assign lessons, review submissions, and track scores and class averages in a gradebook. Accounts use email or Google, with projects and activity synchronized across devices. Plain and compressed MusicXML can be imported, but MusicXML or MIDI export is not yet shipped. Some imported details may be simplified or dropped, and tutor free-form questions are limited to 25 per account per rolling hour.

MyMusicTheory offers interactive exercises for learning music theory and improving sight reading. Practice topics include notes, scales, intervals, chords, rhythm, and key signatures. Users can create custom exercises by choosing chords, scales, and intervals to work on, then review progress by day, week, or month with reports highlighting weaker areas. More advanced material includes seventh and extended chords, scale modes, compound intervals, and multiple clefs. The free plan includes more than 100 exercises, and the service is available on Android, iOS, and macOS. The iOS app is a free download with in-app purchases, including a Premium Upgrade for $8.99; the Android listing says it contains ads and in-app purchases. The app may help with preparation for ABRSM Levels 1–5, but does not cover every syllabus topic. Apple lists location, identifiers, and usage data as potentially used for tracking across other companies’ apps and websites.