ChordB♭7♭9♭138-string bass · Standard B♭ dominant seventh flat nine flat thirteen · Frets 4–5 F♯BEADGCF4R♭73♭13♭95noteB♭A♭DG♭C♭Same note as BFroleR♭73♭13♭95fret445445frets 4–5C0C1C2C3C4C5RootB♭1stD2ndF3rdA♭ StrumArpeggio