Explore the F#7b5 Guitar Chord on Our Interactive Fretboard
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F#7b5, the F# seventh flat five chord, is spelled F#, A#, C and E. The C is the lowered fifth, and E is the minor seventh. It sounds identical to Gb7b5.
Three voicings are listed. One uses a barre, none an open string, and the lowest starts at the 2nd fret. The chord belongs to the family covered in the dominant chord family. The F# whole-tone scale contains every tone.
Pick a tempo, start the drum loop and play along with the shape until the barre and the lowered fifth both feel secure.
F# 7th with flat 5th guitar chord is also written as F#7b5, F#7(b5) or F#7-5.
Notes in the F# 7b5 chord:
How to create the Dominant Seventh Flat five chord:
Formula: 1 3 b5 b7
F# 7b5 Guitar Chord Diagrams
Position 1 Movable
Finger Positions
- Mute the B string
- Mute the high E string
- Place your index finger (1) on the fret 2 of the low E string
- Place your middle finger (2) on the fret 2 of the D string
- Place your ring finger (3) on the fret 3 of the A string
- Place your pinky finger (4) on the fret 3 of the G string
Position 2 Movable
Finger Positions
- Mute the low E string
- Mute the A string
- Place your index finger (1) on the fret 4 of the D string
- Place your middle finger (2) on the fret 5 of the G string
- Place your ring finger (3) on the fret 5 of the B string
- Place your pinky finger (4) on the fret 6 of the high E string
Position 3 Barre Movable
Finger Positions
- Mute the low E string
- Mute the high E string
- Place your index finger (1) on the fret 9 of the A and G strings at the same time
- Place your middle finger (2) on the fret 10 of the D string
- Place your ring finger (3) on the fret 11 of the B string
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Created by
Giancarlo is a musician (teaching guitar since 2000), software engineer, AI consultant and published researcher
FAQ
What notes make up F#7b5?
F#7b5 contains F#, A#, C and E. The C is the lowered fifth, a diminished fifth over F#.
Where is the tritone in F# seventh flat five?
F# and C are a tritone apart, and so are A# and E. The chord stacks two tritones a major third apart.
Is F#7b5 the same chord as Gb7b5?
Yes. Gb7b5 spells it Gb, Bb, Dbb and Fb, the same pitches as F#, A#, C and E. F#7b5 is easier to read because it avoids the double flat.
Which scale contains the notes of F#7b5?
The F# whole-tone scale is F#, G#, A#, B#, C## and E. It includes every pitch of the chord, since the chord's C appears as B#.
How many F#7b5 voicings are there?
There are 3 voicings, from fret 2 to fret 11. One is a barre voicing and none uses an open string.
