What is the C6/9 Chord?
Learning the C6/9 chord tones gives you a set of notes to outline this harmony in bass lines and arpeggios.
Notes and Arpeggios
The 6/9 chord stacks a major 6th and a 9th on a major triad, producing a warm, complete sound that feels settled but colorful. It's a classic jazz voicing often used as a final chord or a substitute for plain major. The complete chord tones are: C, E, G, A, D. The complete formula is 1, 3, 5, 6, and 9.
How to Use It
Extended voicings are a staple of jazz, neo-soul, and modern pop harmony. On bass, outline the harmony one note at a time. Start from the root and add the chord's actual degrees (3, 5, 6, and 9) as the arrangement allows. The chord-tone boxes locate notes; the ordered arpeggio gives a playable route with explicit position shifts.
Build a one-bar bass line from the chord tones before adding scale passing tones. Use the highlights to spot where the same tone repeats across strings.