C6 chord on cavaquinho
C6 is the major sixth chord: C, E, G and A (1–3–5–6). On cavaquinho, the diagram shape is 2 2 1 2, with E in the bass.
On the cavaquinho, four steel strings tuned D–G–B–D pack the chord into a small, bright space — every finger counts. In this C6 voicing the bass is E and the shape runs from fret 1 to 2. Its four steel strings give a bright, sharp attack that cuts through the mix and drives the beat.
Notes and formula of C6
Notes in C6: C – E – G – AFormula: 1 – 3 – 5 – 6In the formula, the numbers count steps of the major scale starting from the note that names the chord; "b" lowers a half step, "#" raises one — and a slash names the bass note.
Where to use it
Song tonic in choro and country; a warm, light ending.
See also
Part of the Sixths family.