The A-flat dominant ninth chord (abbreviated Ab9 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-flat dominant seventh chord.

In practice, the fifth (E) is sometimes omitted from the Ab9 chord because it's not always possible to play all notes simultaneously.

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

Ab9 chord on piano

Ab9 chord on guitar

Ab9 chord on ukulele

Ab9 chord on the staff

Translations of Ab9 chord

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