Gbmaj11 chord
The G-flat major eleventh chord (abbreviated "Gbmaj11 chord") is a six-note chord consisting of the notes G♭, B♭, D♭, F, A♭, and C♭. The chord is formed by adding an eleventh to a G-flat major ninth chord.
In practice, the fifth (D♭) is often omitted from the Gbmaj11 chord to avoid a very dissonant sound, and because it's not always possible to play all notes simultaneously.
Name
G-flat major eleventh chord
Notes
G♭ B♭ D♭ F A♭ C♭
Intervals
1 3 5 7 9 11
Chord symbol
G♭maj11
Alternative symbols
G♭▵11 G♭ma11 G♭MA11 G♭M11
Type
Hexad (six-note chord)