The A#7 (A sharp dominant 7) chord contains the notes A#, Cx (C double sharp), E# and G#. It is produced by taking the root (1), 3, 5 and b7 of the A# Major scale. It is essentially an A# chord, with an added flat 7.
A#7 is most commonly played with the root note on the 1st fret of the 5th string, or the 6th fret of the 6th string. It is essentially the same chord (same shapes) as the Bb7 chord.
A#7 is short for A sharp dominant 7. The dominant 7 chord is a significant chord, because it plays a very important function in any given key.
The dominant 7 chord functions as a chord that resolves to the first chord in a key. For example, the A# dominant 7 chord resolves to the D# chord, which is the first chord in the key of D#.
10 Ways To Play The A#7 Chord
If you’ve come to this page just to view some chord diagrams for A#7, here they are.
Some Quick A Sharp 7 Chord Theory
- The A#7 chord contains the notes A#, Cx, F# and G#.
- A#7 is short for A Sharp dominant 7.
- The A#7 chord is produced by taking the 1 (root), 3, 5 and b7 of the A sharp Major scale.
- The A#7 is the fifth chord in the key of D#. It resolves naturally to the D# Major chord.
- The A#7 chord (just like all dominant 7 chords) contains the following intervals (starting from the root note): major 3rd, minor 3rd, minor 3rd, tone (which leads back to the root note).