ChordB♭–E♭–A♭–D♭Standard B♭ quartal chord, four notes · also B♭m7(add11), no 5th · Fret 6 EADGBE6R4♭7♭3noteB♭E♭A♭D♭roleR4♭7♭3fret6666fret 6C2C3C4C5Fourths, stacked on the first note in its name StrumArpeggio