A Flat Dominant 7th Suspended 4th (also written G#7sus4)
Ab7sus4 is made of 4 notes: Ab, Db, Eb and Gb. Here it is in root position, with Ab at the bottom.
Inside Notley Piano: all the inversions of Ab7sus4, fingering for both hands, a play button, and practice that helps you remember it.
| Note | Degree | Interval from Ab |
|---|---|---|
| Ab | 1 | root |
| Db | 4 | perfect 4th |
| Eb | 5 | perfect 5th |
| Gb | b7 | minor 7th |
A 7sus4 chord is a dominant 7th with the 3rd replaced by a 4th. It sounds open and floating, and it often leads into the plain 7th chord.