A# Diminished Piano Chord

Root
A#
Min 3rd
C#
b 5th
E
E
G
B
D
F
F
A
C
E
A#
C#
E

The Notes in an A# Diminished Chord

The Root

You'll have no trouble finding the root of an A# Diminished chord, because it's what gives an A# Diminished chord it's name: It's the note A#.

The Min 3rd

The minor third of an A# Diminished chord is C#. The minor third is up three half-steps from the Root.

Finding C# from A# step by step:

  • Start on: A#
  • Step 1: move up to B
  • Step 2: move up to B#
  • Step 3: Land on C#
Min 3rd
C#
Root
A#
1
2
  • B is a minor second above A#.
  • B# is a major 2nd above A#.
  • C# is a minor third above A#.

The b 5th

The flat fifth of an A# Diminished chord is E. The flat fifth is down six half-steps from the Root -- but it's easier to just think of it as a variation on the fifth. Once you know your fifths, the flat fifth and sharp fifth are a lot easier to find.

Finding E from A# step by step:

  • Start on: A#
  • Step 1: move down to GX
  • Step 2: move down to G#
  • Step 3: move down to FX
  • Step 4: move down to F#
  • Step 5: move down to E#
  • Step 6: Land on E
b 5th
E
Root
A#
1
2
3
4
5
  • GX is a minor second below A#.
  • G# is a major 2nd below A#.
  • FX is a minor third below A#.
  • F# is a major third below A#.
  • E# is a fourth below A#.
  • E is a flat fifth below A#.

The Inversions of A# Diminished

Root Position

Root
A#
Min 3rd
C#
b 5th
E
E
G
B
D
F
F
A
C
E
A#
C#
E

1st Inversion

Min 3rd
C#
b 5th
E
Root
A#
E
G
B
D
F
F
A
C
E
C#
E
A#

2nd Inversion

b 5th
E
Root
A#
Min 3rd
C#
E
G
B
D
F
F
A
C
E
E
A#
C#

Other A# Chords