Bb Add9, 3rd inversion (B# in the bass)
Notes, from the bass up
B# (bass)A#DE#
The same notes as Bb Add9 (B#, A#, D and E#), rearranged so B# is the lowest note. Use it to move between chords with smaller jumps across the keyboard.
The same notes as Bb Add9 (B#, A#, D and E#), rearranged so B# is the lowest note. Use it to move between chords with smaller jumps across the keyboard.