Contrapunctus vs Musition

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.

Musition is online music theory software for students from beginner through advanced levels. Its 61 topics include pitch, intervals, scales, chords, rhythm, beaming, transposition, error detection, and analysis. Students can work with interactive exercises, rhythm practice, harmony tools, advanced notation, and MIDI support. Teachers can create quizzes, worksheets, assessments, and exams, then use student assessment and tracking tools. Four-part writing is automatically assessed with annotated feedback. Five courses cover orchestral instrument families, with questions on recognition, sound production, clefs, pitch, techniques, terms, and symbols. Musition is listed for web, Windows, macOS, iOS, and Android. Cloud students can use a browser without a download, but need a School Code and PIN. The maker offers a free trial to teachers, schools, colleges, and universities; no duration is stated. Cloud Student access costs $25, paid once for six months or $39 a year for 12 months. Desktop perpetual licenses are $99, paid once for Student and $169, paid once for Professional & Teachers. The Student license is for one computer and up to three enrolled users and cannot be networked or used for cloud or school use.