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Guitar Standard
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A/C# on guitar: A with C sharp in the bass

A/C# is the A major chord (A, C♯, E) with its 3rd, C♯, as the lowest note: the 1st inversion of A. The notes are the same as in A; only the one at the bottom changes.

Notes
AC♯E
Bass
C♯ 3rd of the chord

How to play A/C# on guitar

  1. Shape 1 · 1st position

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

  2. Shape 2 · fret 2 · barre

    A/C# chord on guitar, shape 2: barre at fret 2, notes A, C#, E

  3. Shape 3 · fret 4 · barre

    A/C# chord on guitar, shape 3: barre at fret 5, notes A, C#, E

  4. Shape 4 · fret 7

    A/C# chord on guitar, shape 4: from fret 7, notes A, C#, E

  5. Shape 5 · fret 9

    A/C# chord on guitar, shape 5: from fret 9, notes A, C#, E

Where A/C# shows up

With the 3rd in the bass, the bass line can move by step. The classic case: D → A/C# → Bm, with the bass walking down D, C♯, B.

Other positions of A

Frequently asked questions

What does A/C# mean?

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

What is the difference between A/C# and A?

The notes are the same (A, C♯, E); only the lowest one changes. With C♯ in the bass, A is in 1st inversion, and the bass line can move by step between chords.

How do you play A/C# on guitar?

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

A chord on guitar