All about the A Diminished chord

What notes are in the A Diminished chord?

The A Diminished chord is played out of 4 notes: A, C, Eb, F#.

How to play the A Diminished chord on piano?

What tones from the A Major scale are used in the A Diminished chord?

The A Diminished chord borrows 4 tones from the A Major scale: 1, b3, b5, 6.

IbIIIbVVI
ACEbF#

What are the alterations in the A Diminished chord?

The A Diminished chord contains the following alterations:
  • 1 Flat
  • 1 Sharp