The chords in the key
Each note of the scale builds a chord. The four-note versions add the seventh.
| Degree | Chord | Notes | Role | With seventh |
|---|---|---|---|---|
| I | E | E – G♯ – B | Tonic: home | Emaj7 |
| ii | F♯m | F♯ – A – C♯ | Subdominant | F♯m7 |
| iii | G♯m | G♯ – B – D♯ | Tonic substitute | G♯m7 |
| IV | A | A – C♯ – E | Subdominant | Amaj7 |
| V | B | B – D♯ – F♯ | Dominant: tension | B7 |
| vi | C♯m | C♯ – E – G♯ | Relative tonic | C♯m7 |
| vii° | D♯dim | D♯ – F♯ – A | Dominant (leading tone) | — |