ChordB♭7♭9♯115-string bass · Standard B♭ dominant seventh flat nine sharp eleven · Open position BEADGR♭7noteC♭Same note as BEB♭DA♭role♭9♯11R3♭7fret00101fret 1C0C1C2C3C4RootB♭1stD2ndF3rdA♭ StrumArpeggio