C11
C Dominant 11th
1 3 5 ♭7 9 11

Notes in C11

CR
E3
G5
B♭♭7
D9
F11

The C11 chord contains 6 notes: C, E, G, B♭, D, F

Intervals

IntervalSemitonesNoteFunction
R0CRoot
34EMajor 3rd
57GPerfect 5th
♭710B♭Minor 7th
92DMajor 9th
115FPerfect 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 C11 and can be used for soloing, improvising, and writing melodies over this chord.

C Mixolydian
Contains all the chord tones through the 11th.

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