Root on A string
no fifthx-11-9-11-11-x
A♭m9 is the A♭ minor 9 chord. Its notes are A♭, C♭, E♭, G♭ and B♭. It is the same chord as G♯m9. A minor seventh with a ninth. This compact grip omits the fifth.
x-11-9-11-11-x
Numbers show frets from the low E string to the high e string; x means don't play that string.
Every A♭, C♭, E♭, G♭ 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 minor 9 chords