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Adim Chord Piano

The Adim chord is made up of three notes – A, C, and Eb.

If you’re new to chords, the ‘dim’ is short for ‘diminished’ and the chord is also referred to as the ‘A diminished triad’.

You can actually play an Adim chord on piano in three ways:

  • Root Position – This is where the A note is the lowest note of the chord
  • First Inversion – This is where the C note is the lowest note of the chord
  • Second Inversion – This is where the Eb note is the lowest note of the chord

I’ll quickly explain this in some more detail, with images and audio clips below.


Adim Chord Piano – Root Position

Whenever you play an Adim chord on piano, and A is the lowest note, that’s known as root position. It looks like this:

Piano keyboard with an A diminished chord highlighted in root position
Adim Chord Piano – Root Position

There are seven places on a standard piano where you can play an Adim chord in root position. If you have a piano close by, try playing each one.

Below you’ll see what all seven look like on sheet music. Click the play button if you’d like to hear what they sound like too.

Sheet music showing all seven A diminished chords in root position from low to high

Adim Chord Piano – First Inversion

Whenever you play an Adim chord on piano, and C is the lowest note, that’s known as the first inversion. It looks like this:

Piano keyboard with an A diminished chord highlighted in first inversion
Adim Chord Piano – First Inversion

And here it is played in all places on a standard piano. You’ll notice that there are seven of these too.

Sheet music showing all seven A diminished chords in first inversion from low to high

Adim Chord Piano – Second Inversion

Whenever you play an Adim chord on piano, and Eb is the lowest note, that’s known as the second inversion. It looks like this:

Piano keyboard with an A diminished chord highlighted in second inversion
Adim Chord Piano – Second Inversion

And here is the second inversion played in all places on a standard piano. There are also seven of these.

Sheet music showing all seven A diminished chords in second inversion from low to high

Okay, that’s all for this post. Enough theory about the Adim chord. Now it’s time to play it on your piano. Go make some music!