A Flat Added 9th (also written G#add9)
Abadd9 is made of 4 notes: Ab, C, Eb and Bb. Here it is in root position, with Ab at the bottom.
Inside Notley Piano: all the inversions of Abadd9, fingering for both hands, a play button, and practice that helps you remember it.
| Note | Degree | Interval from Ab |
|---|---|---|
| Ab | 1 | root |
| C | 3 | major 3rd |
| Eb | 5 | perfect 5th |
| Bb | 9 | 9th |
An add9 chord is a major chord with the 9th added (the 2nd, an octave up). It sounds shimmering and modern, and is a favorite in acoustic pop and worship music.