B-maj7 Diminished
The B-maj7 chord is built from the notes B – D – F – A#.
Piano sound loads on first tap.
Also known as
B-maj7b5Bdim(maj7)Bdimmaj7Bm(b5)maj7Bm(maj7b5)Bm7b5(maj7)
Chord tones, one by one
BRoot
Root
The fundamental note the chord is built on — B.
DThird
Minor third
Three semitones — makes the chord minor (darker, sadder).
FFifth
Diminished fifth (♭5)
Six semitones — a flat fifth. Creates instability, typical of m7♭5 and diminished chords.
A#Seventh
Major seventh
Eleven semitones — a lush, jazzy seventh just below the octave (maj7).
🎼 Related scales
🎹 Modal analysis
This chord implies the Whole-half diminished scale.
🎸 Genres
Bebop jazz · Hard bop · Gypsy jazz