Music Master is a free, modern way to learn music theory — interactive quizzes, games, and lessons that teach you by doing, right in your browser. No account, no ads, and no personal data collected.
Everything on the site is free and works without signing up. It’s built around one idea: you learn theory faster by practicing it than by reading about it.
We’re building a Music Master app for iPhone and Android. Alongside the full theory library, it adds a built-in studio — a playable synth, a looper, and a composer — so you don’t just study theory, you make music with it. Learning and creating live in the same place. It’s in active development, and the theory will always stay free.
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400+ questions, seven free lessons, ear training, and progress tracking — 100% private: no account, no data collected.
Music Master is a free website for learning music theory by doing. It turns key signatures, the circle of fifths, intervals, chords, and ear training into quick interactive quizzes, games, and lessons that explain every answer — no account, no ads, and no personal data collected.
Yes. All of the lessons and 400+ practice questions on the site are free, with no account and no ads. It's built to stay that way.
An iPhone and Android app is in development. Alongside the full theory library it adds a built-in studio — a playable synth, a looper, and a composer — so you learn theory by making music, all in one place. The web version is available now and free.
Band and choir students, self-taught guitarists and producers, adult learners returning to an instrument, and anyone preparing for a theory placement or exam — from first-time beginners to players filling in the gaps.
No personal data, and there are no accounts and no ads. The website saves your progress in your browser and records only anonymous, unidentifiable practice activity to power features like the daily mix; the app keeps everything on your device.
Start practicing: circle of fifths game · key signature quiz · the practice app