A#m11 chord
The A-sharp minor eleventh chord (abbreviated "A#m11 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-sharp minor ninth chord.
In practice, the fifth (E♯) is often omitted from the A#m11 chord to avoid a very dissonant sound, and because it's not always possible to play all notes simultaneously.
Name
A-sharp 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)