Interactive Music Theory Lab vs Musition

Interactive Music Theory Lab is a free web app for learning and applying music theory. Chord Lab offers an interactive chord builder, chord library, piano keyboard, staff notation, voicings, and inversions. Scale Explorer covers more than 100 scales and maps their patterns on piano and fretboard. Theory Academy provides interactive lessons, guided tutorials, exercises, and subjects ranging from intervals to voice leading. Composition Studio lets users arrange progressions and song sections by drag and drop, receive theory-based suggestions, and export MIDI or PDF. The interface also lists MIDI and MusicXML import and export, along with PDF and audio export. Users can upload MP3, WAV, OGG, M4A, or FLAC files for chord-progression detection; clear recordings work better than complex mixes. The service requires no account and includes progress tracking. It offers guidance rather than writing songs for users, and the maker notes that bugs exist.

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.