The B-sharp added ninth chord (abbreviated "B#add9 chord") is a four-note chord consisting of the notes B, D, F, and C. The chord is formed by adding a major ninth to a B-sharp major chord.

Often, a major second is played instead of the major ninth since they are the same note.

Name
B-sharp added ninth chord
Synonym
B-sharp added second chord
Notes
B D F C
Intervals
1 3 5 9
Chord symbol
Badd9
Alternative symbols
B(add9) Badd2 B(add2)
Type
tetrad (four-note chord)

B#add9 chord on piano

B#add9 chord on guitar

B#add9 chord on ukulele

B#add9 chord on the staff