C♯11
C♯ Dominant 11th
1 3 5 ♭7 9 11
Notes in C♯11
C♯R
F3
A♭5
B♭7
E♭9
F♯11
The C♯11 chord contains 6 notes: C♯, F, A♭, B, E♭, F♯
Intervals
| Interval | Semitones | Note | Function |
|---|---|---|---|
| R | 0 | C♯ | Root |
| 3 | 4 | F | Major 3rd |
| 5 | 7 | A♭ | Perfect 5th |
| ♭7 | 10 | B | Minor 7th |
| 9 | 2 | E♭ | Major 9th |
| 11 | 5 | F♯ | Perfect 11th |
About C♯ Dominant 11th Chords
Dominant 11th chords extend the 9th with an 11th (4th up an octave). In practice, guitarists often omit the 3rd to avoid a half-step clash with the 11th. The result is sometimes indistinguishable from a 7sus4 voicing.
Compatible Scales & Modes
These scales contain all the notes of C♯11 and can be used for soloing, improvising, and writing melodies over this chord.
C♯ Mixolydian
Contains all the chord tones through the 11th.