Explore F13(b9) Guitar Chords with Interactive Tools
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Seven notes make up F13(b9) (F thirteenth flat nine): F, A, C, Eb, Gb, Bb and D.
The tool lists one voicing, a barre shape between fret 6 and fret 7. The Gb is the flat ninth, a half step above the root F, and the F Half-Whole scale contains every chord tone except the eleventh. The major third A and the minor seventh Eb form the tritone behind the dominant sound.
The fretboard at the top labels every note of each shape, so you can see where F, A and Gb fall.
F 13th with flat 9th guitar chord is also written as F13(b9), F13b9 or F13-9.
Notes in the F 13(b9) chord:
Chord formula for the Dominant Thirteen Flat Nine chord:
Formula: 1 3 5 b7 b9 11 13
F 13(B9) Guitar Chord Diagrams
Position 1 Barre Movable
Finger Positions
- Mute the low E string
- Mute the high E string
- Place your index finger (1) on the fret 6 of the A string
- Place your ring finger (3) on the fret 7 of the D, G and B strings at the same time
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FAQ
What are the notes of F13(b9)?
F13(b9) is F, A, C, Eb, Gb, Bb and D. These are the root, major third, perfect fifth, minor seventh, flat ninth, eleventh and thirteenth.
How many ways are there to play F13(b9)?
One valid voicing is on record for F13(b9). It is a barre voicing that spans frets 6 and 7.
Which scale goes with F13(b9)?
The F half-whole scale has all chord tones except the eleventh, Bb. It also contains the flat ninth, Gb.
What does the b9 do in F13(b9)?
It lowers the ninth from G to Gb, a half step over the root F. That small interval gives the chord its dark, unresolved color.