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

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

Name
A-sharp dominant ninth chord
Notes
ACEGB
Intervals
13579
Chord symbol
A9
Type
Pentad (five-note chord)

A#9 chord on piano

A#9 chord on guitar

A#9 chord on ukulele

A#9 chord on the staff

Translations of A#9 chord

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