Roman numerals

Which chord is that degree?

Pick a key on the circle of fifths. Every degree is listed as major, minor and diminished, with the notes it's built from. Press and hold any chord to hear it.

Cmajor

Mode

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Include altered degrees (♭II, ♭III, ♭V, ♭VI, ♭VII)

Play chords while held

← → move round the circle · m switch mode · k in-key only · a altered degrees

majorminordiminished

Shaded chords belong to the key. Note spellings follow the scale degree, so E gives you A♯ for ♯IV rather than B♭.