B Dominant 7th Sharp 11
Listen plays the chord. Play Along lights up each note in order so you can follow.
Introduction

The B Dominant 7th Sharp 11 chord is a five-note chord made up of B, D♯, E♯, F♯, and A. It is built from a root, major third, augmented fourth, perfect fifth, and minor seventh.
Notes
Key Signature
The key of B Dominant 7th Sharp 11 has 5 sharps.
Order of sharps
Sharps are added to a key signature in a fixed order. Each new sharp key adds the next sharp on the list.
Mnemonic: Father Charles Goes Down And Ends Battle
Chords in the Key of B Major
These are the diatonic triads built on each degree of the B major scale:
Theory: Intervals
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 — Frequently Asked Questions
What notes are in the B Dominant 7th Sharp 11 chord?
How does B7#11 differ from B7?
How does B7#11 differ from B11?
How is B7#11 used?
What scale matches B7#11?
What songs use 7#11?
Practice Tips
- Play B7 then add E#/F — Lydian Dominant brightness.
- The #11 doesn't clash with the third.
- Tritone sub for F7.
- Lydian Dominant scale.
- Practice B7#11 → E resolution.
- Jazz and fusion applications.