Root on E string
A#add9 chord tones around the E-string root.
Bass chord companion
A# Add 9 Chord
Learn the A# Add 9 chord on bass with chord tones, intervals, and interactive fretboard shapes.
1A#3C##5E#9B#
Bass chord-tone boxes
Bass lines usually imply this chord with arpeggios and target tones. Start with root-on-E and root-on-A boxes.
Root on A string
A#add9 chord tones around the A-string root.
Full fretboard map
Every A# Add 9 Chord chord tone across the neck, with roots highlighted for quick orientation.
Common progressions using A# Add 9
Try these progressions to hear the chord in context instead of treating it as an isolated shape.
I-IV-V foundation
This is the core major-key movement behind blues, rock, country, and pop progressions.
I-vi-IV-V loop
A familiar pop progression that balances a stable tonic with relative minor color.
Chord Tones
| Degree | Interval | Note |
|---|---|---|
| 1 | R | A# |
| 3 | 3 | C## |
| 5 | 5 | E# |
| 9 | 2 | B# |
Compatible Scales
Formula
R – 3 – 5 – 2