B7(#5)(#4) Augmented
The B7(#5)(#4) chord is built from the notes B – D# – F## – A – E#.
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Also known as
Baug7(#4)
Chord tones, one by one
BRoot
Root
The fundamental note the chord is built on — B.
D#Third
Major third
Four semitones — makes the chord major (brighter, happier).
F##Fifth
Augmented fifth (♯5)
Eight semitones — a sharp fifth. Restless and dreamy, typical of augmented chords.
ASeventh
Minor seventh (♭7)
Ten semitones — the dominant/minor seventh. Adds bluesy tension (7, m7).
E#Extension
Sharp eleventh (♯11)
A ♯11 — the bright, floating Lydian color.
🎼 Related scales
🎹 Modal analysis
This chord implies the Whole tone scale; its characteristic note is the dreamy, suspended ♯5.
🎸 Genres
Impressionism · Film & TV scoring · Jazz