MetronoTuner
Guitar Standard
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C/B on guitar: C with B in the bass

C/B is C with B in the bass. That B is the chord's 7th, so what you hear is C7M in 3rd inversion (C7M/B), with the notes C, E, G, B.

Notes
CEGB
Bass
B 7th of the chord · C7M

How to play C/B on guitar

  1. Shape 1 · 1st position

    C/B chord on guitar, shape 1: first position, with open strings, notes B, C, E, G

  2. Shape 2 · fret 2 · barre

    C/B chord on guitar, shape 2: barre at fret 2, notes B, C, E, G

  3. Shape 3 · fret 5 · barre

    C/B chord on guitar, shape 3: barre at fret 5, notes B, C, E, G

  4. Shape 4 · fret 8 · barre

    C/B chord on guitar, shape 4: barre at fret 8, notes B, C, E, G

Where C/B shows up

The 7th in the bass wants to step down. The most common path: C → C/B → Am, with the bass walking down C, B, A.

Other positions of C

Frequently asked questions

What does C/B mean?

C/B reads "C over B": you play C and the lowest note is B. In a chord symbol, whatever comes after the slash is always the bass.

What is the difference between C/B and C?

C/B has one more note: B in the bass, which is the 7th. That is why it sounds like C7M in 3rd inversion.

How do you play C/B on guitar?

The shapes on this page go from easiest to hardest. In all of them B is the lowest note; the low strings that would sound below it are not played (x).

C chord on guitar