Play by ear. Build your music.

Paste the chords of any song, hear them instantly, and we'll tell you which scale to improvise and compose with. Free, no sign-up.

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Heads-up: the studio speaks Spanish for now — the music works in every language. 😉

Scales major · minor · pentatonic · blues · modes Open Chords how each chord sounds and how it's built Open Progressions the chord loops behind every hit Open