A♯add9

A# Add 9 chord

Notes

A#DFC

Intervals

1359

Root

Voicings on standard tuning

Voicing 1

○

5fr

Voicing 2

○

Voicing 3

○

6fr

Voicing 4

○

3fr

Voicing 5

○

3fr

Voicing 6

6fr

Interval formula

1 – 3 – 5 – 9

Sound character

a major chord with extra sparkle, no seventh involved

Where it appears

Adds movement to strummed major chords in pop, indie and acoustic ballads.

I–V–vi–IV

With A#add9 as the tonic, this is the classic four-chord pop loop.

ii–V–I

A#add9 is the resting point everything resolves to.

I–IV–V

The three-chord backbone of folk, country and early rock and roll.