About this chord (A♯maj7(no3, ♯5, ♭9, ♯11)):A♯ maj7(no3, ♯5, ♭9, ♯11) is a "eleventh" chord. A♯maj7(no3, ♯5, ♭9, ♯11)/F♯, A♯maj7(no3, ♯5, ♭9, ♯11)/A, A♯maj7(no3, ♯5, ♭9, ♯11)/B, A♯maj7(no3, ♯5, ♭9, ♯11)/E are the inversions of this chord."A♯" is the root of the chord and its major scale is A♯, B♯, C♯♯, D♯, E♯, F♯♯, G♯♯About maj7(no3, ♯5, ♭9, ♯11) chords:What's that chord again?1P 5A 7M 9m 11A is the chord intervals formula for "maj7(no3, ♯5, ♭9, ♯11)" chords. The notation can also be simplified to 1 #5 7 b9 #11.