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Fdim Chord Piano

The Fdim chord is made up of three notes – F, Ab, and Cb.

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

Now, you might notice that the note Cb is the same as the note B, on piano. In this post I’ll use Cb to be technically correct, but if it’s easier, feel free to think of it as B.

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

  • Root Position – This is where the F note is the lowest note of the chord
  • First Inversion – This is where the Ab note is the lowest note of the chord
  • Second Inversion – This is where the Cb note is the lowest note of the chord

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


Fdim Chord Piano – Root Position

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

Piano keyboard with an F diminished chord highlighted in root position
Fdim Chord Piano – Root Position

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

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

Sheet music showing all six F diminished chords in root position from low to high

Fdim Chord Piano – First Inversion

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

Piano keyboard with an F diminished chord highlighted in first inversion
Fdim Chord Piano – First Inversion

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

Sheet music showing all six F diminished chords in first inversion from low to high

Fdim Chord Piano – Second Inversion

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

Piano keyboard with an F diminished chord highlighted in second inversion
Fdim Chord Piano – Second Inversion

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

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

That’s all for this post. Now I hope you have some fun and play music with Cdim chords on your piano!