A-sharp diminished 7th

A-sharp diminished 7th guitar chord is also written as A♯dim7 or A♯o7.

Below are up to 8 popular shapes for the A-sharp diminished 7th guitar chord, with suggested finger positions on the fretboard.

A-sharp diminished 7th guitar chord diagram

How to play the A-sharp diminished 7th chord

String numbers run from the thinnest string (1st) to the thickest string (6th). Match each numbered finger to the diagrams.

Shape x12020

Place your index finger (1) on the 1st fret of the 5th (A) string.
Place your middle finger (2) on the 2nd fret of the 4th (D) string.
Place your ring finger (3) on the 2nd fret of the 2nd (B) string.
Let the 1st (high E) string and 3rd (G) string ring open.
Do not play the 6th (low E) string.

Shape 678686

Place your index finger (1) on the 6th fret of the 1st (high E) string, 3rd (G) string, and 6th (low E) string in a barre.
Place your middle finger (2) on the 7th fret of the 5th (A) string.
Place your ring finger (3) on the 8th fret of the 4th (D) string.
Place your little finger (4) on the 8th fret of the 2nd (B) string.

View A-sharp diminished 7th inversions and slash chords

A♯dim7/C♯ - A♯dim7/E - A♯dim7/G

View diminished 7th chord for guitar with other root notes

C - D - E - F - G - A - B - C♯ - D♯ - F♯ - G♯ - A♯ - D♭ - E♭ - G♭ - A♭ - B♭