A#dim chord on piano
A Sharp Diminished, also written Bbdim. Notes: A#, C# and E.
How to play A#dim
- Find A# just below middle C. That is the root.
- Add C# and E above it, skipping the keys in between.
- Right hand fingering: 1-3-5 (thumb, middle, pinky). Left hand: 5-3-1 (pinky, middle, thumb).
Notes
A#dim inversions
An inversion moves the lowest note up an octave. Same notes, smoother jumps between chords.
Root position
A# · C# · E1st inversion
C# · E · A#2nd inversion
E · A# · C#Notes and theory
The diminished triad stacks two minor thirds. It sounds tense and unstable and is mostly used as a passing chord. The formula is 1 b3 b5, and you will also see it written as A#° and A#o.
Keys that use A#dim
More A# chords
All A# piano chordsdiminished chords in every key
Questions
What notes are in the A#dim chord?
A#dim (A sharp diminished) is made of three notes: A# (root), C# (minor third) and E (diminished fifth).
How do you play A#dim on piano?
Play A#, C# and E together. With the right hand use fingers 1-3-5 (thumb, middle, pinky); with the left hand use 5-3-1 (pinky, middle, thumb).
What are the inversions of A#dim?
Root position: A# C# E. 1st inversion: C# E A#. 2nd inversion: E A# C#.
What key is A#dim in?
A#dim belongs to 2 keys: B major (as the vii° chord) and G sharp minor (as the ii° chord).
What does a diminished chord sound like?
The diminished triad stacks two minor thirds. It sounds tense and unstable and is mostly used as a passing chord.