What is Music Theory Reference?

Look up scales, chords, keys, and intervals in one place. Browse major, minor, pentatonic, and blues scales with their note patterns. View chord formulas for major, minor, diminished, augmented, and seventh chords. Great when you need a quick theory refresher while writing or practicing.

How to use

1. Select a category — Scales, Chords, or Keys — from the navigation tabs at the top.
2. Pick a root note (C through B, including sharps/flats) to see all patterns starting from that note.
3. View the note sequence, interval pattern, and formula for each scale or chord type.

Result

A guitarist composing in the key of E minor selects 'Scales', picks 'E', and 'Natural Minor' and sees the notes E, F#, G, A, B, C, D with the interval pattern W-H-W-W-H-W-W. They then check related chords for the key.

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