Csus4 chord on cavaquinho
Csus4 is the suspended 4 chord: C, F and G (1–4–5). On cavaquinho, the diagram shape is 3 0 1 3, with F 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 Csus4 voicing the bass is F and the shape runs from fret 1 to 3, ringing 1 open string. Its four steel strings give a bright, sharp attack that cuts through the mix and drives the beat.
Notes and formula of Csus4
Notes in Csus4: C – F – GFormula: 1 – 4 – 5In 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
Preparation and resolution to the triad; very common right before an important chord.
See also
Part of the Suspended family.