A 13#9 Guitar Chord | Play, Hear and Practice Interactively

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A 13(#9) position 1 guitar chord diagram

The A13(#9) chord, also read as A thirteenth sharp nine, is spelled A, C#, E, G, B#, D and F#: a root, a major third, a perfect fifth, a minor seventh, a sharp ninth, an eleventh and a thirteenth.

The tool shows a single voicing between fret 5 and fret 8, and it is not a barre shape. The A Half-Whole scale, made of alternating half and whole steps, lines up with the chord: it has every chord tone except the eleventh.

The fretboard at the top labels every note of each shape, so you can see where A, C# and B# fall.

A 13th with sharp 9th guitar chord is also written as A13(#9), A13#9 or A13+9.

Notes that compose the A 13(#9) chord:

A C# E G B# D F#

Chord structure of the Dominant Thirteen Sharp Ninth chord:

Formula: 1 3 5 b7 #9 11 13

A 13(#9) Guitar Chord Diagrams

Position 1 Movable

Finger Positions

Mute the low E string
Mute the A string
Place your index finger (1) on the fret 5 of the D string
Place your middle finger (2) on the fret 6 of the G string
Place your ring finger (3) on the fret 7 of the B string
Place your pinky finger (4) on the fret 8 of the high E string

Find more shapes in our all guitar chords online library. If you prefer a printable pdf, download the Free Guitar Chords Chart Pdf

Play This Chord With Other Roots

C 13(#9) | D 13(#9) | E 13(#9) | F 13(#9) | G 13(#9) | A 13(#9) | B 13(#9) | C#13(#9) | D#13(#9) | F#13(#9) | G#13(#9) | A#13(#9) | Ab13(#9) | Bb13(#9) | Db13(#9) | Eb13(#9) | Gb13(#9)

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Created by

Giancarlo Facoetti

Giancarlo is a musician (teaching guitar since 2000), software engineer, AI consultant and published researcher

FAQ

Which notes does A13(#9) contain?

A13(#9) is spelled A, C#, E, G, B#, D and F#. That is the root, major third, perfect fifth, minor seventh, sharp ninth, eleventh and thirteenth.

How many ways are there to play A13(#9)?

One valid voicing is on record for A13(#9). It uses no open strings and no barre, and it spans frets 5 to 8.

Which scale fits A13(#9)?

The A half-whole scale covers every chord tone except the eleventh, D. It includes the sharp ninth, B#, and the thirteenth, F#.

Why does A13(#9) have both C# and B#?

C# is the major third and B# is the sharp ninth. The ninth sounds like a minor third, so the two notes rub against each other.