Scale degrees · G major
The 7 of G is F♯
The 7 (seven) of G is F♯ (F sharp): a major seventh above the root.
G — the root, 1F♯ — the 7
How to find it
Count letters first, the root included: G, A, B, C, D, E, F. A 7th lands on F.
Then the sound: a major seventh is 11 semitones above G, and the F that is 11 semitones up is F♯.
That is why it is F♯ and not G♭: G♭ is the same key on the piano, but from G it would be an unison, not a 7th.
Where you meet it
The 7 is a half step below the root: the major seventh, the 7th of the maj7 chord and the leading tone of the key.
In Gmaj7:
G · B · D · F♯
The 7 in every key
| Key | The 7 |
|---|---|
| C | B |
| G | F♯ |
| D | C♯ |
| A | G♯ |
| E | D♯ |
| B | A♯ |
| F♯ | E♯ |
| D♭ | C |
| A♭ | G |
| E♭ | D |
| B♭ | A |
| F | E |
Every degree of G
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