A9 chord on piano
A Dominant Ninth. Notes: A, C#, E, G and B.
How to play A9
- Find A just below middle C. That is the root.
- Add C#, E, G and B above it, skipping the keys in between.
- Right hand fingering: 1-2-3-4-5, or split the chord between both hands. Left hand: play the root and fifth, and leave the upper notes to the right hand.
Notes
Aroot
C#3 · major third
E5 · perfect fifth
Gb7 · minor seventh
B9 · ninth
Notes and theory
Aroot
C#3 · major third
E5 · perfect fifth
Gb7 · minor seventh
B9 · ninth
The dominant ninth is a seventh chord with a ninth on top. It is a funk and blues favorite with a fuller sound than a plain 7. The formula is 1 3 5 b7 9.
More A chords
All A piano chordsAmajorAmminorA7dominant seventhAm7minor seventhAmaj7major seventhAsus4suspended fourthAsus2suspended secondAdimdiminishedAaugaugmentedA6major sixthAadd9added ninthAm7b5half-diminishedAdim7diminished seventhA7sus4dominant seventh suspended fourthA5power chordAm6minor sixthAm9minor ninthAmaj9major ninth
dominant ninth chords in every key
Questions
What notes are in the A9 chord?
A9 (A dominant ninth) is made of five notes: A (root), C# (major third), E (perfect fifth), G (minor seventh) and B (ninth).
How do you play A9 on piano?
Play A, C#, E, G and B together. With the right hand use fingers 1-2-3-4-5, or split the chord between both hands; with the left hand use play the root and fifth, and leave the upper notes to the right hand.
What does a dominant ninth chord sound like?
The dominant ninth is a seventh chord with a ninth on top. It is a funk and blues favorite with a fuller sound than a plain 7.