How do you play the C dim(no3)/B chord?

To play the C dim(no3)/B chord on piano, play the C dim(no3) chord (C and F#) with B as the lowest bass note. Place the B note below the other chord tones. Slash chords specify a particular bass note different from the chord root.

What notes are in the C dim(no3)/B chord?

The C dim(no3)/B chord uses the 2 notes of the C dim(no3) chord — C (Perfect unison) and F# (Diminished fifth) — with B played as the bass note in the lowest register.

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 C dim(no3)/B chord means a C dim(no3) chord with B in the bass.

C dim(no3)/B

The C dim(no3) chord consists of the C (Perfect unison) and F# (Diminished fifth) notes, with B as the bass note.

How to play the C dim(no3)/B chord

Play B as the lowest bass note in the left hand
Find C (Root) on the piano keyboard
Add F# (Diminished fifth) — 6 semitones above C
Press all 3 notes simultaneously to sound the C dim(no3)/B chord

Related chords with different root

C maj7(b5)(sus)
F# sus4(b5)

Related slash chords

F# dim(no3)/B