A+ chord on 4-String Bass – Drop C

in Drop C (C-G-C-F) tuning

✕○21AC#F
A+
Augmented
Notes:A · C# · F
easy
Piano Left hand Right hand
AAAFC#
ShapeFretsFingersNotesDifficulty
x 2 1 0– 2 1 –x A C# Feasy
5 6 5 42 4 3 1F C# F Amedium
9 6 5 84 2 1 3A C# F C#hard
9 6 9 02 1 3 –A C# A Fmedium
9 10 9 82 4 3 1A F A C#medium
1 2 1 01 2 1 –C# A C# Feasy · barre on fret 1
x 6 5 4– 3 2 1x C# F Amedium
9 6 5 03 2 1 –A C# F Fhard
9 6 x 02 1 – –A C# x Fhard
9 10 x 82 3 – 1A F x C#hard
1 2 x 01 2 – –C# A x Feasy
5 6 x 42 3 – 1F C# x Ahard
9 6 5 x3 2 1 –A C# F xhard
x 6 9 0– 1 2 –x C# A Fmedium
x 10 9 8– 3 2 1x F A C#medium
1 2 5 01 2 3 –C# A F Fhard

The A+ chord (Augmented) is built from the notes A, C#, F. Below are playable fingerings for 4-String Bass – Drop C generated for your selected tuning, ordered from open-position shapes up the neck. Tap a diagram to hear it, or switch to the piano view to see the same harmony on keys.

How the A+ chord is built

Formula: 1 · 3 · ♯5

DegreeSemitonesNote
10A
34C#
♯58F

More A chords

Other roots

See A+ in another tuning

What notes make up the A+ chord?

A+ is a Augmented chord built from the notes A, C#, F.

How do I read the diagram?

Strings run left to right from the lowest to the first string; the numbers show which finger presses each fret. An ○ marks an open string, an ✕ marks a muted one.