The G Dominant 7th Sharp 11 chord is a five-note chord made up of G, B, C♯, D, and F. It is built from a root, major third, augmented fourth, perfect fifth, and minor seventh.
Construction
G Dominant 7th Sharp 11 = Root + Major 3rd + Diminished 5th + Perfect 5th + Minor 7th = G · B · C♯ · D · F
| Note | Interval | Degree |
|---|---|---|
| G | Root | 1 |
| B | Major 3rd | 3 |
| C♯ | Diminished 5th | ♭5 |
| D | Perfect 5th | 5 |
| F | Minor 7th | ♭7 |
Key Signature
A dominant chord points home to the key a fifth below its root: the G Dominant 7th Sharp 11 is the V (dominant) of C Major, so the relevant key signature is that key’s — no sharps or flats. Spelled as a scale, these notes are G Mixolydian.
Chords in the Key of C Major
These are the triads built on each degree of the C major scale:
G Dominant 7th Sharp 11 — Frequently Asked Questions
What is the G Dominant 7th Sharp 11 chord on piano?
The G Dominant 7th Sharp 11 chord contains the notes G – B – C♯ – D – F. On piano, play these notes together to sound the chord.
What notes are in the G Dominant 7th Sharp 11 chord?
G7#11 contains: G, B, C#, D, F. Lydian Dominant sound.
How does G7#11 differ from G7?
Adds C# (the #11). Brighter and more complex than standard G7.
How does G7#11 differ from G11?
G11 has C (clashes with B). G7#11 has C# which doesn't clash.
How is G7#11 used in music?
Lydian Dominant. G7#11 is the enriched V chord in C Major — one of the most important 7#11 chords in jazz. Tritone sub for Db7.
What scale matches G7#11?
G Lydian Dominant: G, A, B, C#, D, E, F — 4th mode of D melodic minor.
What songs use 7#11?
Modern jazz. G7#11 → Cmaj7 is one of the most common uses.