F#13(#9) chord - F# Dominant Thirteen Sharp Ninth - guitar chord chart

Seven notes make up F#13(#9) (F# thirteenth sharp nine): F#, A#, C#, E, G##, B and D#.

The sharp ninth G## sounds like A, a minor third above the root F#, even though it is named as a raised ninth. The F# Half-Whole scale, built from alternating half and whole steps, contains every chord tone except the eleventh B.

From the dominant seventh F#7 (F#, A#, C#, E) the chord grows by adding that raised ninth, the eleventh and the thirteenth D#. As a dominant chord it usually resolves to the chord a fourth above F#.

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

F#13(#9) Chord Notes and Formula

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

F# A# C# E G## B D#

Chord Structure:

Formula: 1 3 5 b7 #9 11 13

Same chord, different name: F#13(#9) is also written as Gb13(#9) (Gb thirteenth sharp nine).

F# 13(#9) Chord Interactive Fretboard

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Chords That Go With F#13(#9)

One key where F#13(#9) fits is B major, where it works as the V chord. These are the main chords of that key, the ones you will often hear around it:

I · B ii · C#m iii · D#m IV · E V · F# vi · G#m

See every key in the guitar keys chart, or build a progression with these chords in the chord progression generator.

More F# Chords

F# F#m F#7 F#m7 F#maj7 F#sus4 F#sus2 F#add9 F#dim F#9 F#6/9 F#6(#11) F#7(b13) F#7(b9)

Want to know how this chord is built? Read dominant chords explained, or browse all F# guitar chords.

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

What notes spell F#13(#9)?

F#13(#9) is F#, A#, C#, E, G##, B and D#. That is the root, major third, perfect fifth, minor seventh, sharp ninth, eleventh and thirteenth.

Is F#13(#9) just another name for Gb13(#9)?

Yes, only the spelling changes. Gb13(#9) uses Gb, Bb, Db, Fb, A, Cb and Eb, a set with no double sharp.

Why does F#13(#9) include G##?

The ninth over F# uses the letter G, and the major ninth is G#. The sharp ninth raises it another half step to G##, which sounds like A.

What scale fits F#13(#9)?

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