Effective period / Period of releases: 1973 - 1974

Members: Freddy Prochnik, Carlos Barrio, Alejandro Barzi, Alvaro Cañada, Néstor Barrios

Originally Contraluz had Carlos Barrio (guitars), Nestor "Punsi" Barrio (drums) and Freddy Prochnik (bass), made music beat and Pop rock in English, under the name of Lemon, who then changed by Celofan to finally decide for Contraluz by incorporating a fourth member: Alejandro Barzi on flute and voice. Your -extremedamente exigua- discography, starts with an LP released by EMI in 1973, Americanos: For this album the band already had another member added: Álvaro Cañada voice, while Alejandro Barzi would focus on wind instruments, and keyboards.

After the release of the album Alejandro Barzi leaves the group and is set in the town of El Bolson, Patagonia. Jorge Guarnieri incorporated on guitar and vocals and Gustavo Dinerstein on flute and sax, the concert presentation takes place in the "Cine Teatro Libertador" on the street Corrientes, in Buenos Aires, with great success with audiences and critics. By the end of that year, EMI publishes a simple track can two themes: "Indios sin prision" on the A side and "La sarna del viento" on the B side (That we offer here) , becoming a bestseller.