B♭9♯11
B♭ 9th Sharp 11 · 4 fingerings
Raising the eleventh sidesteps the clash with the major third, so B♭9♯11 keeps its full dominant character while gaining a bright, floating top note. This is the classic Lydian dominant sound, central to jazz and fusion, and it sits perfectly over the fourth mode of melodic minor. Sophisticated and unmistakably modern.
B♭9♯11 · position 1
B♭9♯11 · position 2 · fret 5
B♭9♯11 · position 3 · fret 8
B♭9♯11 · position 4 · fret 12