|2||Eb or Gb||1||7th fretfr.||optionalopt.|
Guitar chords in the key of G# or Ab:
Chord Ab7 (4th fret) notes: Ab, Eb, Gb, C, Eb or (Gb) and Ab.
This chord is played by placing a barre on fret four with your index finger. The note Gb on the second string is not required, but can be played on the 7th fret if needed.
Ab(G#) dominant 7th chord's alternative names: Abdom7, (Ab septim).
1(G#/Ab), 3(C), 5(D#/Eb), b7(F#/Gb).