Cmaj9(#11) chord on cavaquinho
Cmaj9(#11) is the major ninth sharp eleventh chord: C, E, G, B, D and F# (1–3–5–7–9–#11). On cavaquinho, the diagram shape is 2 5 0 4, 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 Cmaj9(#11) voicing the bass is E and the shape runs from fret 2 to 5, ringing 1 open string. Because this instrument has fewer strings than Cmaj9(#11) has notes, one note, usually the fifth, is normally dropped without losing the chord's identity. Its four steel strings give a bright, sharp attack that cuts through the mix and drives the beat.
Notes and formula of Cmaj9(#11)
Notes in Cmaj9(#11): C – E – G – B – D – F#Formula: 1 – 3 – 5 – 7 – 9 – #11In 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
Dreamy by nature, it opens or closes film-like ballads and modern jazz pieces. It is worth trying in place of a final maj7 when you want the music to end hanging in the air.
See also
Part of the Extended family.