The B dominant thirteenth chord, often abbreviated as B13, is a seven-note chord that extends the B dominant seventh by incorporating the ninth, eleventh, and thirteenth intervals, creating a highly rich and sophisticated harmonic structure. Its notes are B (root), D♯ (major third), F♯ (perfect fifth), A (minor seventh), C♯ (major ninth), E (perfect eleventh), and G♯ (major thirteenth), combining to produce a full, colorful, and tension-filled sound. This chord is widely used in jazz, funk, and fusion music to add depth, complexity, and dynamic movement to chord progressions, while maintaining a dominant function that naturally resolves to the tonic. The interplay of the extended intervals gives the B dominant thirteenth chord a lush, expansive character, making it an essential tool for musicians seeking to enrich their harmonic vocabulary and create expressive, multidimensional compositions.
Name: B dominant thirteenth chord
Notes: B, D♯, F♯, A, C♯, E, G♯
Intervals: 1, 3, 5, ♭7, 9, 11, 13
Chord symbol: B13
Type: Heptad (seven-note chord)
B dominant thirteenth chord on the Staff
B dominant thirteenth chord on Piano
B dominant thirteenth chord on Guitar
B dominant thirteenth 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.