Remember if the root note (1) or key center is major then the 4th and 5th chords will also be major. All the other chords are to be minor; the seventh is considered diminished (flattened), but it works when played as a minor chord as well.
| Major | Minor | Minor | Major | Major | Minor | Minor / Dim |
|---|---|---|---|---|---|---|
| Key | 2ND | 3RD | 4TH | 5TH | Minor (6TH) | 7TH |
| C | Dm | Em | F | G | Am | Bm - 7th |
| G | Am | Bm | C | D | Em | F#m - 7th |
| D | Em | F#m | G | A | B | C#m - 7th |
| A | Bm | C#m | D | E | F#m | G#m - 7th |
| E | F#m | G#m | A | B | C#m | D#m - 7th |
| B | C#m | D#m | E | F# | G#m | A#m - 7th |
| F | Gm | Am | B Flat | C | Dm | Em - 7th |
| B Flat | Cm | Dm | E Flat | F | Gm | Am - 7th |
| E Flat | Fm | Gm | A Flat | B Flat | Cm | Dm - 7th |
| A Flat | B Flat m | Cm | D Flat | E Flat | Fm | Gm - 7th |
| D Flat | E Flat m | Fm | G Flat | A Flat | B Flat m | Cm - 7th |
| G Flat | A Flat m | B Flat m | C Flat(B) | D Flat | E Flat m | Fm - 7th |