Chord · 9ths

G9 — G Dominant 9th

G9 is the G dominant 9th chord. It is built on the root G with major 3rd (B), perfect 5th (D), minor 7th (F) and major 9th (A) above it — the formula 1 3 5 ♭7 9, sounding the notes G B D F A. On the piano it sits at G (octave 4) and above in the library's voicing; the same 5 notes in any octave are still G9.

Root
G
Quality
Dominant 9th
Formula
1 3 5 ♭7 9
Notes
G B D F A

On the keyboard

G9 on the piano keyboard: G B D F A12345GBDFA

Right-hand fingering for this voicing: 1–2–3–4–5 (1 is the thumb).

The notes of G9

DegreeNoteInterval from the rootPitch
1GrootG4
3Bmajor 3rdB4
5Dperfect 5thD5
♭7Fminor 7thF5
9Amajor 9thA5

Other 9ths on G

Dominant 9th chords on every root

Part of the chord reference. See also the scales and the keys.