Bbm11 chord
The B-flat minor eleventh chord (abbreviated "Bbm11 chord") is a six-note chord consisting of the notes B♭, D♭, F, A♭, C, and E♭. The chord is formed by adding an eleventh to a B-flat minor ninth chord.
In practice, the fifth (F) is often omitted from the Bbm11 chord to avoid a very dissonant sound, and because it's not always possible to play all notes simultaneously.
Name
B-flat minor eleventh chord
Notes
B♭ D♭ F A♭ C E♭
Intervals
1 ♭3 5 ♭7 9 11
Chord symbol
B♭m11
Alternative symbols
B♭–11 B♭mi11 B♭min11
Type
Hexad (six-note chord)