ChordA♭7♯9♭137-string bass · Standard A♭ dominant seventh sharp nine flat thirteen · Frets 3–4 BEADGCF3R3♭7♯9♭13noteA♭CG♭BF♭Same note as EroleR3♭7♯9♭13fret43444frets 3–4C0C1C2C3C4C5RootA♭1stC2ndE♭3rdG♭ StrumArpeggio