The C added ninth chord (Cadd9) is a bright and versatile chord that enhances the traditional C major triad by adding the ninth (D) without altering the major third (E) or fifth (G). Comprising the notes C, E, G, and D, it produces a lush and open sound, making it a popular choice in pop, rock, and folk music. The added ninth introduces a subtle harmonic color that enriches chord progressions and provides a sense of movement without creating dissonance. The C added ninth chord is particularly effective for creating melodic accompaniments, adding depth and expressiveness while maintaining the clarity and stability of the underlying major triad.
Name: C added ninth chord
Symnonyms:: C added second chord
Notes: C, E, G, D
Intervals: 1, 3, 5, 9
Chord symbol: Cadd9
Alternative symbols: C(add9), Cadd2, C(add2)
Type: Tetrad (four-note chord)
C added ninth chord on the Staff
C added ninth chord on Piano
C added ninth chord on Guitar
C added ninth 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.