ChordB♭7♯9♭135-string bass · Standard B♭ dominant seventh sharp nine flat thirteen · Frets 10–11 BEADG10R3♭7♯9♭13noteB♭DA♭C♯G♭roleR3♭7♯9♭13fret1110111111frets 10–11C0C1C2C3C4RootB♭1stD2ndF3rdA♭ StrumArpeggio