The C♯ Dominant 7th Sharp 11 chord is a five-note chord made up of C♯, E♯, F♯♯, G♯, and B. It is built from a root, major third, augmented fourth, perfect fifth, and minor seventh.
Construction
C♯ Dominant 7th Sharp 11 = Root + Major 3rd + Diminished 5th + Perfect 5th + Minor 7th = C♯ · E♯ · F♯♯ · G♯ · B
| Note | Interval | Degree |
|---|---|---|
| C♯ | Root | 1 |
| E♯ | Major 3rd | 3 |
| F♯♯ | Diminished 5th | ♭5 |
| G♯ | Perfect 5th | 5 |
| B | Minor 7th | ♭7 |
Key Signature
A dominant chord points home to the key a fifth below its root: the C♯ Dominant 7th Sharp 11 is the V (dominant) of F# Major, so the relevant key signature is that key’s — 6 sharps (F♯, C♯, G♯, D♯, A♯, E♯). Spelled as a scale, these notes are C# Mixolydian.
F♯C♯G♯D♯A♯E♯
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 F♯ Major
These are the triads built on each degree of the F♯ major scale:
C♯ Dominant 7th Sharp 11 — Frequently Asked Questions
What is the C♯ Dominant 7th Sharp 11 chord on piano?
The C♯ Dominant 7th Sharp 11 chord contains the notes C♯ – E♯ – F♯♯ – G♯ – B. On piano, play these notes together to sound the chord.
What notes are in the C# Dominant 7th Sharp 11 chord?
C# Dominant 7th Sharp 11 is built from the C# root. Check the interactive keyboard above for exact notes and fingering.
How is the C# Dominant 7th Sharp 11 chord used in music?
C# Dominant 7th Sharp 11 appears in jazz, pop, and classical contexts. Its sound depends on the chord quality (Dominant 7th Sharp 11).
What is the fingering for C# Dominant 7th Sharp 11?
See the fingering chart above. Right hand typically uses thumb on root. Left hand uses pinky on root.
What are the inversions of C# Dominant 7th Sharp 11?
Use the inversion buttons above to see each inversion with notes, fingering, and staff notation.
What scale matches C# Dominant 7th Sharp 11?
The Lydian Dominant scale is the natural match — Mixolydian with a raised 4th.