Notes in C6
The C6 chord contains 4 notes: C, E, G, A
Intervals
| Interval | Semitones | Note | Function |
|---|---|---|---|
| R | 0 | C | Root |
| 3 | 4 | E | Major 3rd |
| 5 | 7 | G | Perfect 5th |
| 6 | 9 | A | Major 6th |
About C Major 6th Chords
Major 6th chords add the 6th to a major triad. Popular in jazz standards, swing, and country, they have a bright, slightly retro quality. In jazz, 6th chords often substitute for maj7 when the melody includes the root note.
Compatible Scales & Modes
These scales contain all the notes of C6 and can be used for soloing, improvising, and writing melodies over this chord.
EXPLORE MODES
Playing C sixth on Guitar
The C sixth chord, spelled C, E, G, A, occupies a specific harmonic role that depends on the musical context. In the key of C major, the most fundamental key in Western music, this chord can function as a primary harmony or as a passing color depending on where it appears in the progression. Understanding which scale degrees produce C-rooted chords helps you predict chord progressions and improvise melodies that complement the harmony.
On guitar, C sixth voicings benefit from open position voicings that resonate beautifully on acoustic guitar. The physical shape of this chord on the fretboard determines its tonal character — the same notes arranged in different voicings produce noticeably different sounds due to string gauge, fret position, and overtone content. Experiment with playing C sixth in multiple positions to find the voicing that best fits the register and texture of the music you are working on.
Adding the sixth to C major creates a warm, vintage-sounding chord. C6 has a settled, sweet quality that avoids the tension of seventh chords, making it a classic choice for endings and turnarounds in jazz standards and early rock and roll.
When practicing C sixth, use the compatible scales listed above to improvise melodies and riffs. Start by playing the chord, then explore the scale tones one at a time to hear how each note sounds against the harmony. This ear training exercise connects your theoretical knowledge of C-rooted chords to practical musicianship skills that improve your playing across all genres and styles.