A#dim7 chord on guitar
A Sharp Diminished Seventh, also written Bbdim7. Notes: A#, C#, E and G.
How to play A#dim7
- Put your index finger on the 5th (A) string at fret 1 (A#).
- Put your middle finger on the 4th (D) string at fret 2 (E).
- Put your ring finger on the 2nd (B) string at fret 2 (C#).
- Let the open G and high E strings ring.
- Don't play the low E string: skip it or mute it with a fretting finger.
- Strum from the A string down.
All 4 ways to play A#dim7
Easiest first. Tap play to hear each one.Open position
EasyFret 2 position
EasyFret 8 position
HardBarre at fret 6
HardNotes and theory
The diminished seventh is built entirely from minor thirds, so it repeats every three frets. It is a dramatic passing chord. The formula is 1 b3 b5 bb7, and you will also see it written as A#°7 and A#o7.
More A# chords
All A# guitar chordsdiminished seventh chords in every key
Questions
What notes are in the A#dim7 chord?
A#dim7 (A sharp diminished seventh) is made of four notes: A# (root), C# (minor third), E (diminished fifth) and G (diminished seventh).
How do you play A#dim7 on guitar?
The easiest A#dim7 is the "open position" shape. Put your index finger on the 5th (A) string at fret 1 (A#). Put your middle finger on the 4th (D) string at fret 2 (E). Put your ring finger on the 2nd (B) string at fret 2 (C#).
Is A#dim7 hard to play on guitar?
No. The easiest version is rated easy and uses 3 fretted notes plus open strings.
What does a diminished seventh chord sound like?
The diminished seventh is built entirely from minor thirds, so it repeats every three frets. It is a dramatic passing chord.