A13
A Dominant 13th
1 3 5 ♭7 9 13
Notes in A13
AR
C♯3
E5
G♭7
B9
F♯13
The A13 chord contains 6 notes: A, C♯, E, G, B, F♯
Intervals
| Interval | Semitones | Note | Function |
|---|---|---|---|
| R | 0 | A | Root |
| 3 | 4 | C♯ | Major 3rd |
| 5 | 7 | E | Perfect 5th |
| ♭7 | 10 | G | Minor 7th |
| 9 | 2 | B | Major 9th |
| 13 | 9 | F♯ | Major 13th |
About A Dominant 13th Chords
Dominant 13th chords are the largest standard chord, potentially containing all seven notes of the scale. Guitarists typically voice them selectively — root, 3rd, 7th, and 13th are the essential tones. They're smooth, jazzy, and sophisticated.
Compatible Scales & Modes
These scales contain all the notes of A13 and can be used for soloing, improvising, and writing melodies over this chord.
A Mixolydian
Contains all chord tones including the 13th (6th).
A Lydian Dominant
Mixolydian with ♯4 — common in jazz over dominant 13th chords.