The B-flat dominant ninth chord (abbreviated Bb9 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-flat dominant seventh chord.

In practice, the fifth (F) is sometimes omitted from the Bb9 chord because it's not always possible to play all notes simultaneously.

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

Bb9 chord on piano

Bb9 chord on guitar

Bb9 chord on ukulele

Bb9 chord on the staff

Translations of Bb9 chord

Bulgarian
Си-бемол доминантов нонакорд
Chinese (Simplified)
降B属九和弦
Chinese (Traditional)
降B屬九和弦
French
accord de Si bémol neuvième dominante
German
B-Dominant-Nonenakkord
Indonesian
akor B-mol dominan kesembilan
Italian
accordo di Si bemolle nona di dominante
Japanese
Bフラット ドミナントナインスコード
Korean
B-flat dominant ninth chord
Polish
akord hes dominantowy nonowy
Portuguese
acorde de Si bemol de 9ª dominante
Russian
си-бемоль-доминантнонаккорд
Spanish
acorde de si bemol dominante con novena
Swedish
dominant Bess-9-ackord
Turkish
Si bemol dominant dokuzlu raporu
Ukrainian
сі-бемоль домінантний нонакорд
Vietnamese
hợp âm Si giáng át 9