Abm11 chord
The A-flat minor eleventh chord (abbreviated "Abm11 chord") is a six-note chord consisting of the notes A♭, C♭, E♭, G♭, B♭, and D♭. The chord is formed by adding an eleventh to a A-flat minor ninth chord.
In practice, the fifth (E♭) is often omitted from the Abm11 chord to avoid a very dissonant sound, and because it's not always possible to play all notes simultaneously.
Name
A-flat minor eleventh chord
Notes
A♭ C♭ E♭ G♭ B♭ D♭
Intervals
1 ♭3 5 ♭7 9 11
Chord symbol
A♭m11
Alternative symbols
A♭–11 A♭mi11 A♭min11
Type
hexad (six-note chord)