The B diminished chord, commonly notated as Bdim, is a three-note chord consisting of B (root), D (minor third), and F (diminished fifth). This chord is built by stacking two minor thirds, creating a tense and unstable sound that naturally seeks resolution. The B diminished chord is frequently used in classical, jazz, and contemporary music to add dramatic tension, act as a passing chord, or lead into more stable harmonies. Its unique interval structure gives it a dark, suspenseful character, making it an expressive tool for composers and performers looking to introduce harmonic complexity and emotional intensity into their musical progressions.
Name: B diminished chord
Symnonyms:: B diminished triad
Notes: B, D, F
Intervals: 1, ♭3, ♭5
Chord symbol: Bo
Alternative symbols: Bdim, Bm(♭5), Bm♭5
Type: Triad (three-note chord)
B diminished chord on the Staff
B diminished chord on Piano
B diminished chord on Guitar
B diminished chord on Ukulele
Rowan Ellis is a musician and educator with a passion for exploring the language of harmony and melody. With years of experience across classical, jazz, and contemporary styles, Rowan breaks down music theory into clear, practical insights. His goal is to make chords and scales less intimidating and more inspiring for every musician.