This reference chart shows the notes and major, minor and diminished diatonic triads for the 12 major scales in the order of circle of fifths: C, G, D, A, E, B, Gb, Db, Ab, Eb, Bb, F. Knowing the major scale and what diatonic chords go with it is helpful for understanding, transcribing and composing music.
| Scale | Notes | Diatonic Chords | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Degree | I | II | III | IV | V | VI | VII | I | II | III | IV | V | VI | VII |
| C major | C | D | E | F | G | A | B | C | Dm | Em | F | G | Am | B° |
| G major | G | A | B | C | D | E | F♯ | G | Am | Bm | C | D | Em | F♯° |
| D major | D | E | F♯ | G | A | B | C♯ | D | Em | F♯m | G | A | Bm | C♯° |
| A major | A | B | C♯ | D | E | F♯ | G♯ | A | Bm | C♯m | D | E | F♯m | G♯° |
| E major | E | F♯ | G♯ | A | B | C♯ | D♯ | E | F♯m | G♯m | A | B | C♯m | D♯° |
| B major | B | C♯ | D♯ | E | F♯ | G♯ | A♯ | B | C♯m | D♯m | E | F♯ | G♯m | A♯° |
| G♭ major | G♭ | A♭ | B♭ | C♭ | D♭ | E♭ | F | G♭ | A♭m | B♭m | C♭ | D♭ | E♭m | F° |
| D♭ major | D♭ | E♭ | F | G♭ | A♭ | B♭ | C | D♭ | E♭m | Fm | G♭ | A♭ | B♭m | C° |
| A♭ major | A♭ | B♭ | C | D♭ | E♭ | F | G | A♭ | B♭m | Cm | D♭ | E♭ | Fm | G° |
| E♭ major | E♭ | F | G | A♭ | B♭ | C | D | E♭ | Fm | Gm | A♭ | B♭ | Cm | D° |
| B♭ major | B♭ | C | D | E♭ | F | G | A | B♭ | Cm | Dm | E♭ | F | Gm | A° |
| F major | F | G | A | B♭ | C | D | E | F | Gm | Am | B♭ | C | Dm | E° |