C#6/9

— About this chord

C#6/9 combines the sweet lift of a major 6th with the sparkle of an added 9th, creating a warm, resolved, jazzy color often used as a substitute tonic chord in place of a plain major triad. A bossa nova and swing favorite, it avoids the pull of a 7th, making it a satisfying chord to land a progression on. Movable grips make it a go-to ending chord in jazz standards. Also searched as C#6add9, Db6/9, D♭6/9.