The B-sharp dominant ninth chord (abbreviated B#9 chord) is a five-note chord consisting of the notes B, D, F, A, and C. The chord is formed by adding a major ninth to the B-sharp dominant seventh chord.

In practice, the fifth (F) is sometimes omitted from the B#9 chord because it's not always possible to play all notes simultaneously.

Name
B-sharp dominant ninth chord
Notes
BDFAC
Intervals
13579
Chord symbol
B9
Type
Pentad (five-note chord)

B#9 chord on piano

B#9 chord on guitar

B#9 chord on ukulele

B#9 chord on the staff

Translations of B#9 chord

Bulgarian
Си-диез доминантов нонакорд
Chinese (Simplified)
升B属九和弦
Chinese (Traditional)
升B屬九和弦
French
accord de Si dièse neuvième dominante
German
His-Dominant-Nonenakkord
Indonesian
akor B-kres dominan kesembilan
Italian
accordo di Si diesis nona di dominante
Japanese
Bシャープ ドミナントナインスコード
Korean
B-sharp dominant ninth chord
Polish
akord his dominantowy nonowy
Portuguese
acorde de Si sustenido de 9ª dominante
Russian
си-диез-доминантнонаккорд
Spanish
acorde de si sostenido dominante con novena
Swedish
dominant Biss-9-ackord
Turkish
Si diyez dominant dokuzlu raporu
Ukrainian
сі-дієз домінантний нонакорд
Vietnamese
hợp âm Si thăng át 9