G#7b5 Guitar Chord | Play, Hear and Practice Interactively

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G# 7b5 position 1 guitar chord diagram

The G#7b5 chord (G# seventh flat five) is spelled G#, B#, D and F#. It sounds identical to Ab7b5, which swaps the B# for a plain C but needs an Ebb.

All three voicings start at the 3rd fret, and none is a barre or has an open string. The D is the lowered fifth and the F# is the minor seventh. The sound is the same as D7b5 too, because the pair of tritones in the chord repeats every six semitones. The G# whole-tone scale contains every note.

Switch on the drum loop above, choose a tempo and play along.

G# 7th with flat 5th guitar chord is also written as G#7b5, G#7(b5) or G#7-5.

Notes in the G# 7b5 chord:

G# B# D F#

Chord structure of the Dominant Seventh Flat five chord:

Formula: 1 3 b5 b7

G# 7b5 Guitar Chord Diagrams

Position 1 Movable

G# 7b5 position 1 guitar chord diagram

Finger Positions

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

Position 2 Movable

G# 7b5 position 2 guitar chord diagram

Finger Positions

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

Position 3 Movable

G# 7b5 position 3 guitar chord diagram

Finger Positions

  • Mute the low E string
  • Mute the A string
  • Place your index finger (1) on the fret 6 of the D string
  • Place your middle finger (2) on the fret 7 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

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Play This Chord With Other Roots

C 7b5 | D 7b5 | E 7b5 | F 7b5 | G 7b5 | A 7b5 | B 7b5 | C#7b5 | D#7b5 | F#7b5 | G#7b5 | A#7b5 | Ab7b5 | Bb7b5 | Db7b5 | Eb7b5 | Gb7b5

Giancarlo Facoetti, founder of FaChords Guitar

Created by

Giancarlo Facoetti

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

FAQ

How is G#7b5 spelled?

G#7b5 is G#, B#, D and F#. The D is the fifth lowered by a semitone from D#, which makes it a diminished fifth over the root.

Why is the third of G# seventh flat five written B#?

The letters run G, B, D, F, so a major third over G# takes the letter B and becomes B#. It sounds like C.

Is G#7b5 identical to Ab7b5?

Yes. Ab7b5 is Ab, C, Ebb and Gb, the same four pitches as G#, B#, D and F#. Each spelling has one awkward note, B# in G#7b5 and Ebb in Ab7b5.

How many voicings does G#7b5 have?

There are 3 voicings, from fret 3 to fret 8. None of them is a barre voicing and none uses an open string.

Which scale works over G#7b5?

The G# whole-tone scale spells G#, A#, B#, C##, D## and F#. It holds all four chord pitches, since the chord's D appears as C##.