The mechanical and acoustic functioning

        The portuguese guitar possesses twelve metallic strings distributed by six orders, three of which tune in unisonous (in pairs of steel wire) and the remainders in eighth (in pairs of naked and covered wire). The strings lay in one mobile trestle (characteristic of the instruments of the citharas family) that transmits the vibrations to the harmonic sound-board, being this lightly convex. The strings pass over the point and stand out with fixed metal frets.

Cabeça da Guitarra