Barre chord
fret 11, A shapex-11-13-15-13-11
A♭add9 is the A♭ added 9 chord. Its notes are A♭, C, E♭ and B♭. It is the same chord as G♯add9. A major triad plus the ninth, without a seventh. Let the upper notes ring.
x-11-13-15-13-11
Numbers show frets from the low E string to the high e string; x means don't play that string.
Every A♭, C, E♭ and B♭ on the first 12 frets. The filled dots are the root, A♭. Build your own shape from any nearby group.
Other A♭ chords
Other added 9 chords