B Dominant 7th Sharp 11
Notes:B ā D# ā F# ā A ā F
Formula:R-M3-A4-P5-m7
Intervals:P1-M3-A4-P5-m7
Scale Degrees:1-3-#4-5-b7
Introduction
The B Dominant 7th Sharp 11 piano chord (B7\u266f11) consists of the notes B, D#, F, F#, A. It is a dominant 7th chord with an augmented (sharpened) 11th, creating a distinctive tritone clash, giving it a tense, tritone-driven character central to the Lydian Dominant sound in jazz and fusion. Formula: R-M3-A4-P5-m7 | Scale degrees: 1-3-#4-5-b7.
Notes
B Dominant 7th Sharp 11 Inversions
| Position | Notes |
|---|---|
| Root Position | B4 ā D#5 ā F#5 ā A5 ā F5 |
| 1st Inversion | D#5 ā F5 ā F#5 ā A5 ā B5 |
| 2nd Inversion | F5 ā F#5 ā A5 ā B5 ā D#6 |
Key Signature
The key of B Dominant 7th Sharp 11 has 5 sharps: FāÆ, CāÆ, GāÆ, DāÆ, AāÆ.
FāÆCāÆGāÆDāÆAāÆ
Theory: Intervals
Formula: R-M3-A4-P5-m7
Intervals: P1-M3-A4-P5-m7
The B Dominant 7th Sharp 11 is built by stacking intervals from the root note. The formula R-M3-A4-P5-m7 describes the scale degrees used. The intervals P1-M3-A4-P5-m7 show the distance between each note in the chord.
B Dominant 7th Sharp 11 ā Frequently Asked Questions
What notes are in the B Dominant 7th Sharp 11 chord?
B7#11 contains: B, D#, E#, F#, A. Lydian Dominant sound.
How does B7#11 differ from B7?
Adds E# (the #11, enharmonically F).
How does B7#11 differ from B11?
B11 has E (clashes with D#). B7#11 has E# which doesn't clash.
How is B7#11 used?
Lydian Dominant. Jazz. Tritone sub for F7.
What scale matches B7#11?
B Lydian Dominant ā 4th mode of F# melodic minor.
What songs use 7#11?
Modern jazz, fusion.
Practice Tips
- Play B7 then add E#/F ā Lydian Dominant brightness.
- The #11 doesn't clash with the third.
- Tritone sub for F7.
- Lydian Dominant scale.
- Practice B7#11 ā E resolution.
- Jazz and fusion applications.