The G Major 7♭5 chord is a four-note chord made up of G, B, D♭, and F♯.
Construction
G Major 7♭5 = Root + Major 3rd + Diminished 5th + Major 7th = G · B · D♭ · F♯
| Note | Interval | Degree |
|---|---|---|
| G | Root | 1 |
| B | Major 3rd | 3 |
| D♭ | Diminished 5th | ♭5 |
| F♯ | Major 7th | 7 |
Key Signature
A chord has no key signature of its own, but the G Major 7♭5 is the tonic (I) chord of G Major, whose key signature has 1 sharp (F♯).
F♯
Order of sharps
Sharps are added to a key signature in a fixed order. Each new sharp key adds the next sharp on the list.
F♯C♯G♯D♯A♯E♯B♯
Mnemonic: Father Charles Goes Down And Ends Battle
Chords in the Key of G Major
These are the triads built on each degree of the G major scale:
G Major 7♭5 — Frequently Asked Questions
What is the G Major 7♭5 chord on piano?
The G Major 7♭5 chord contains the notes G – B – D♭ – F♯. On piano, play these notes together to sound the chord.