The A dominant minor ninth chord (abbreviated A7(b9) chord) is a five-note chord consisting of the notes A, C, E, G, and B. The chord is formed by adding a minor ninth to the A dominant seventh chord.

In practice, the fifth (E) is often omitted from the A7(b9) chord because it's not always possible to play all notes simultaneously.

Name
A dominant minor ninth chord
Notes
ACEGB
Intervals
13579
Chord symbol
A7(b9)
Alternative symbol
A7b9
Type
Pentad (five-note chord)

A7(b9) chord on piano

A7(b9) chord on guitar

A7(b9) chord on ukulele

A7(b9) chord on the staff

Translations of A7(b9) chord

Bulgarian
Ла доминантов септакорд с умалена нона
Chinese (Simplified)
A属小九和弦
Chinese (Traditional)
A屬小九和弦
French
accord de La neuvième mineure dominante
German
A-Dominantseptakkord mit kleiner None
Indonesian
akor A dominan minor kesembilan
Italian
accordo di La settima e nona diminuita
Japanese
A ドミナントマイナーナインスコード
Korean
A dominant minor ninth chord
Polish
akord a dominantowy septymowy z noną małą
Portuguese
acorde de Lá de 7ª da dominante com 9ª menor
Russian
ля-минорный доминантноннаккорд
Spanish
acorde de la con séptima de dominante y novena menor
Swedish
A-7-ackord med sänkt nona
Turkish
La dominant minör dokuzlu akoru
Ukrainian
ля домінантовий мінорний нонакорд
Vietnamese
hợp âm La át 7 giáng 9