Cbmaj11 chord
The C-flat major eleventh chord (abbreviated "Cbmaj11 chord") is a six-note chord consisting of the notes C♭, E♭, G♭, B♭, D♭, and F♭. The chord is formed by adding an eleventh to a C-flat major ninth chord.
In practice, the fifth (G♭) is often omitted from the Cbmaj11 chord to avoid a very dissonant sound, and because it's not always possible to play all notes simultaneously.
Name
C-flat major eleventh chord
Notes
C♭ E♭ G♭ B♭ D♭ F♭
Intervals
1 3 5 7 9 11
Chord symbol
C♭maj11
Alternative symbols
C♭▵11 C♭ma11 C♭MA11 C♭M11
Type
Hexad (six-note chord)