G#m7b5 chord (G sharp half-diminished seventh) on piano
G#m7b5 (G sharp half-diminished seventh) has four notes: G sharp, B, D and F sharp. Its formula is 1, b3, b5, b7. In major keys, G#m7b5 is the viiø7 chord in A major.
G#m7b5 inversions and fingering
G# B D F# · RH 1-2-3-5 · LH 5-3-2-1
B D F# G# · RH 1-2-4-5 · LH 5-3-2-1
D F# G# B · RH 1-2-3-5 · LH 5-3-2-1
F# G# B D · RH 1-2-3-5 · LH 5-4-2-1
G# B F# · LH 5-3-1
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| Symbol | G#m7b5 |
|---|---|
| Also written | G#ø, G#ø7, G#min7b5, G#-7b5 |
| Notes | G# B D F# |
| Formula | 1 b3 b5 b7 |
| Intervals | root, minor third, tritone, minor seventh |
| Type | Half-diminished seventh chord |
G#m7b5 across the keyboard
Piano, C3 to C5. Notes in this scale, low to high: D3 (flat 5), F#3 (flat 7), G#3 (1), B3 (flat 3), D4 (flat 5), F#4 (flat 7), G#4 (1), B4 (flat 3).
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Questions
What notes are in the G#m7b5 chord?
G#m7b5 (G sharp half-diminished seventh) has four notes: G sharp, B, D and F sharp. Its formula is 1, b3, b5, b7. G# is the root, B is the minor third, D is the tritone and F# is the minor seventh.
How do you play G#m7b5 on piano?
Play G#, B, D and F# together. Root position: G# B D F# · RH 1-2-3-5 · LH 5-3-2-1.
What key is G#m7b5 in?
In major keys, G#m7b5 is the viiø7 chord in A major. It is diatonic to those keys, so it fits songs in any of them.
What is the difference between G#m7b5 and G#dim7?
G#m7b5 and G#dim7 share G#, B and D. G#m7b5 has F#, the flat 7th, where G#dim7 has F, the double flat 7th.