Seven young Italians — five men and two women between the ages of 20 and 30, with a spirit of adventure — sparked an international diplomatic conflict with Francisco Franco’s Spain in the early 1960s. They traveled through the country as tourists in 1961, secretly recording popular songs against the regime among the people, and later released two albums and a book. It was primarily the book, Canti della nuova resistenza spagnola: 1939-1961 (Song…