ChordA♭7(add13)7-string · Standard A♭ dominant seventh added thirteenth · Frets 1–4 BEADGBER3♭7R313noteA♭CG♭A♭CFroleR3♭7R313fret434111frets 1–4C1C2C3C4C5C6RootA♭1stC2ndE♭3rdG♭ StrumArpeggio