In 1966, Mina started working with the Swiss Broadcasting Service and the Orchestra Radiosa in Lugano. She founded the independent record label PDU in collaboration with her father. The first record issued under the label was Dedicato a mio padre (Dedicated to My Father). Mina's growing interest in Brazilian music resulted in " La banda " ("The Band"), a Chico Buarque song, which reached #3 in Italy. Mina continued to perform on Italian TV, and presented "Zum zum zum" on the spring 1967 variety series Sabato sera , accompanied by the NATO naval band. The series also included "La coppia più bella del mondo" ("The Most Beautiful Couple in the World"), a duet with Adriano Celentano . The title of the song "Sono, come tu mi vuoi" ("I Am, as You Want Me to Be") was taken from Luigi Pirandello 's play Come tu mi vuoi . The lyrics talk about the manic attention of the press on an artist's private life.  Another hit from Sabato sera was " L'immensità " ("Immensity"), which was re-scored by Augusto Martelli and released as "La inmensidad" in Spain and Latin American countries.