ChordA7♭98-string bass · StandardThumb A dominant seventh flat nine · Open position F♯BEADGCFR3♭75♭9noteAC♯GAEB♭roleR3♭7R5♭9fret323023frets 2–3C0C1C2C3C4C5RootA1stC♯2ndE3rdG StrumArpeggio