music21 vs Musicca

music21 is a free Python toolkit for computer-aided musicology, used to study music datasets, teach music theory, edit notation, analyze music, generate examples, and compose. It includes a corpus of thousands of encoded works, plus tools for searching that corpus, plotting pitch, and performing advanced analysis such as nPVI. The toolkit works with MIDI and MusicXML and can be extended to handle other formats. Its documentation recommends MuseScore for viewing and editing notation, and describes MusicXML readers including Finale, Sibelius, and Dorico. Optional integrations include LilyPond, Matplotlib, SciPy, PyAudio, and Pygame; music21 can also be used in web-based Jupyter Notebook. It runs on Linux, macOS, and Windows, with web use through Jupyter. The toolkit is BSD-licensed and costs nothing. Some corpus works have separate license restrictions. Users need some familiarity with Python, and music21 works primarily with symbolic music data rather than sound waves; it cannot read notation directly from images or PDFs.

Musicca is a free music-learning platform for students, educators, and musicians, available on the web and mobile devices. Exercises cover notes, rhythms, intervals, chords, scales, key signatures, instruments, and genres. Learners can also use virtual piano and guitar tools, a metronome, tuner, chord finder, and scale finder. Points, medals, stars, streaks, and weekly leaderboards add game elements to practice. An account is needed to save exercise progress; registration is available by email, Google, or Facebook. Teachers can create classes to manage students and follow their progress. Musicca says logged-in users do not see ads, while advertising helps keep the service free. Users can disable the leaderboard. For enrolled students, names, email addresses, and exercise progress are shared with their teacher. The service has no app, but its website works on mobile with an internet connection. It offers no offline access or live feedback during practice. Musicca was founded in Denmark in 2019 by Lasse Grubbe. Help articles and company contact are available for support.