B# Major Ninth for Bass
A B# Major ninth chord, also written as B#maj9, B#Δ9, B#ma9 or B#M9 contains the notes B#, D##, F##, A## and C##. The chord is comprised of the intervals M3, m3, M3 and m3.
B
D
F
A
C
M3
m3
M3
m3