Bb7(#11) Guitar Chord - Guitar Chords Chart
Bb7(#11) (Bb seventh sharp eleven) adds an E to the dominant seventh Bb, D, F and Ab, and that E is the raised eleventh, a tritone above the root. The five notes are a root, a major third, a perfect fifth, a minor seventh and a sharp eleventh.
In this spelling the sharp eleventh is E, a tritone above the root. The Bb Lydian Dominant scale, the fourth mode of the melodic minor scale, lines up with Bb7(#11), because it contains all five chord tones. It belongs to the dominant family, which is covered in dominant chords.
A chart may also write it as 7#11 or 7+11, and all of these spellings mean the same chord.
Bb 7th with sharp 11th guitar chord is also written as Bb7(#11), Bb7#11 or Bb7+11.
Notes in the Bb 7(#11) chord:
How to create the Dominant Seventh Sharp Eleventh Added chord:
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Giancarlo is a musician (teaching guitar since 2000), software engineer, AI consultant and published researcher
FAQ
Which five notes make up Bb7(#11)?
Bb, D, F, Ab and E. The first four form a Bb seventh chord, and E is the sharp eleventh.
Is A#7(#11) the same chord as Bb7(#11)?
Yes, they sound identical. A#7(#11) is spelled A#, C##, E#, G# and D##, which needs several double sharps, so Bb7(#11) is the simpler spelling.
Why is the sharp eleventh in Bb7(#11) a plain E?
The eleventh higher than Bb takes the letter E. The natural eleventh is Eb, and raising it by a half step gives E natural, a tritone from the root in pitch.
What scale can I use over the Bb seventh sharp eleven chord?
The Bb Lydian Dominant scale: Bb, C, D, E, F, G and Ab. It contains all five chord tones and is the fourth mode of the melodic minor scale.
How does Bb7(#11) differ from a plain Bb7?
A plain Bb7 has Bb, D, F and Ab. Bb7(#11) adds E, the sharp eleventh, which lies a half step lower than the fifth F one octave up.
