A#° 5-String Guitar Chord — Chart and Tabs in Open G (Keith Richards) Tuning

Short answer: A#° is a A# Diminished chord with the notes A♯, C♯, E. In Open G (Keith Richards) tuning, there are 21 voicings. See the fingering diagrams below.

Also known as: A#mb5, A#mo5, A# dim, A# Diminished

Looking for A#° (Standard (EADGB) Tuning)?

ChordIQFree

Ready to actually learn these chords? Train your ear, master the staff, and build real skills with interactive games — for guitar, ukulele, bass and more.

Get It Free

Piano CompanionFree★ 4.7 · 24,738 ratings

Hear this chord, see every inversion and find any chord from the notes you play — even offline. 10,000+ chords and scales, free.

Get It Free

How to Play A#° on 5-String Guitar

A#°, A#m^b5, A#m^o5, A#dim, A#Diminished

Notes: A♯, C♯, E

Quick Summary

• The A#° chord contains the notes: A♯, C♯, E
• In Open G (Keith Richards) tuning, there are 21 voicings available
• Also written as: A#mb5, A#mo5, A# dim, A# Diminished
• Each diagram shows finger positions on the 5-String Guitar fretboard

Did you know?

KidTeller

Personalized Storybooks

Your child can star in their own personalized storybook? KidTeller weaves your child's name, photo, and favorite things into a magical adventure — making them the hero of every page.

Create a Story

Did you know?

MathIt

Multiplayer Math Game

Math practice can be a multiplayer battle? MathIt lets 2–5 players compete head-to-head in fast 30-second rounds. Share a room code with friends and find out who solves equations the fastest.

Play Now

Frequently Asked Questions

What is the A#° chord on 5-String Guitar?

A#° is a A# Diminished chord. It contains the notes A♯, C♯, E. On 5-String Guitar in Open G (Keith Richards) tuning, there are 21 ways to play this chord.

How do you play A#° on 5-String Guitar?

To play A#° on in Open G (Keith Richards) tuning, use one of the 21 voicings shown above. Each diagram shows finger positions on the fretboard, with numbers indicating which fingers to use.

What notes are in the A#° chord?

The A#° chord contains the notes: A♯, C♯, E.

How many ways can you play A#° on 5-String Guitar?

In Open G (Keith Richards) tuning, there are 21 voicings for the A#° chord. Each voicing uses a different position on the fretboard while playing the same notes: A♯, C♯, E.

What are other names for A#°?

A#° is also known as A#mb5, A#mo5, A# dim, A# Diminished. These are different notations for the same chord with the same notes: A♯, C♯, E.

All A# chords