How do you play the F dim/Cb chord?

To play the F dim/Cb chord on piano, play the F dim chord (F, Ab and Cb) with Cb as the lowest bass note. Place the Cb note below the other chord tones. Slash chords specify a particular bass note different from the chord root.

What is a slash chord?

A slash chord (or compound chord) is written as Chord/Bass and specifies both a chord and a bass note. The note to the right of the slash is played as the lowest note. The F dim/Cb chord means a F dim chord with Cb in the bass.

F dim/Cb

Q: What notes are in the F dim/Cb chord?

The F dim/Cb chord uses the 3 notes of the F dim chord — F (Perfect unison), Ab (Minor third) and Cb (Diminished fifth) — with Cb played as the bass note in the lowest register.

The F dim chord consists of the F (Perfect unison), Ab (Minor third) and Cb (Diminished fifth) notes, with Cb as the bass note.

Piano keyboard showing the notes for a F dim/Cb chord

How to play the F dim/Cb chord

Play Cb as the lowest bass note in the left hand
Find F (Root) on the piano keyboard
Add Ab (Minor third) — 3 semitones above F
Add Cb (Diminished fifth) — 6 semitones above F
Press all 4 notes simultaneously to sound the F dim/Cb chord

Related chords with different root

F dim

Related slash chords

F m3/Cb