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G#dim7 chord (G sharp diminished seventh) on piano

G#dim7 (G sharp diminished seventh) has four notes: G sharp, B, D and F. Its formula is 1, b3, b5, bb7.

G#dim7 inversions and fingering

BDFG#
Root position
G# B D F · RH 1-2-3-5 · LH 5-3-2-1
BDFG#
First inversion
B D F G# · RH 1-2-3-5 · LH 5-3-2-1
DFBG#
Second inversion
D F G# B · RH 1-2-3-5 · LH 5-3-2-1
FBDG#
Third inversion
F G# B D · RH 1-2-3-5 · LH 5-3-2-1
BFG#
Shell (left hand)
G# B F · LH 5-3-1

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G#dim7 chord facts
SymbolG#dim7
Also writtenG#°7, G#o7
NotesG# B D F
Formula1 b3 b5 bb7
Intervalsroot, minor third, tritone, major sixth
TypeDiminished seventh chord

G#dim7 across the keyboard

C3C4C5Db5Fbb7Bb3Db5Fbb7Bb3G#1G#1

Piano, C3 to C5. Notes in this scale, low to high: D3 (flat 5), F3 (double flat 7), G#3 (1), B3 (flat 3), D4 (flat 5), F4 (double flat 7), G#4 (1), B4 (flat 3).

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Questions

What notes are in the G#dim7 chord?

G#dim7 (G sharp diminished seventh) has four notes: G sharp, B, D and F. Its formula is 1, b3, b5, bb7. G# is the root, B is the minor third, D is the tritone and F is the major sixth.

How do you play G#dim7 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 is the difference between G#dim7 and G#dim?

G#dim7 is G#dim (G#, B and D) with F, the double flat 7th, added.