The C-sharp added ninth chord is a bright and colorful chord composed of the notes C♯, E♯, G♯, and D♯. By adding the ninth interval to the major triad without altering its basic structure, the C-sharp added ninth chord introduces a sense of openness and melodic interest, creating a fresh and expressive sound. Commonly used in pop, jazz, and contemporary music, this chord provides both harmonic stability and a touch of sophistication, making it ideal for enriching progressions and adding emotional nuance. Its combination of familiar triadic harmony with the extended ninth makes it a versatile and appealing choice for many musical contexts.
Name: C-sharp added ninth chord
Symnonyms:: C-sharp added second chord
Notes: C♯, E♯, G♯, D♯
Intervals: 1, 3, 5, 9
Chord symbol: C♯add9
Alternative symbols: C♯(add9), C♯add2, C♯(add2)
Type: Tetrad (four-note chord)
C-sharp added ninth chord on the Staff
C-sharp added ninth chord on Piano
C-sharp added ninth chord on Guitar
C-sharp 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.