Bb › Bb9#11
Bb9#11 / A#9#11 Guitar Chord
Bb 9 Sharp 11 · also written A#9#11
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Root note (Bb) · Other notes
Notes
BbCDEAb
Intervals (the formula)
193♭5♭7
Bb9#11 = root · 9th · major 3rd · ♭5th · ♭7th
Hear it
4 ways to play Bb9#11 up the neck
Voicing 1 · Bb C D E Ab
Voicing 2 · Bb C D E Ab
Voicing 3 · Bb D E Ab
Voicing 4 · Bb C D E Ab