Barre chord
fret 4, E shape465544
A♭maj7 is the A♭ major 7 chord. Its notes are A♭, C, E♭ and G. It is the same chord as G♯maj7. An open, reflective color. The major seventh sits a semitone below the root.
465544
x-11-13-12-13-11
Numbers show frets from the low E string to the high e string; x means don't play that string.
A♭maj7 is the Imaj7 chord in A♭ major and the IVmaj7 chord in E♭ major. That makes it a natural fit in songs written in those keys.
Every A♭, C, E♭ and G on the first 12 frets. The filled dots are the root, A♭. Build your own shape from any nearby group.
Other A♭ chords
Other major 7 chords