Moises

Moises is a mobile-first app for musicians that separates songs into stems, then helps you practice with them: mute your instrument, detect chords and key, change tempo and pitch, and loop sections. It has tens of millions of users, many of them working musicians and students, and it deliberately doesn't generate music from prompts. Its parent company, Music AI, also licenses the technology to businesses. Paid tiers remove limits and add higher-quality models and batch processing.