Cassio Audi cofounded the Brazilan hard rock band in 1985. He and his cofounding friends were all either 13 or 14 at the time. Prior to this time, Audi had already been playing in bands around his hometown of Sao Paulo. Then the brothers Yves and Pit Passarell asked him and some other friends if they would like to start a new band with them. This is the group that would soon be called Viper. In 1985 the group produced to very well received demos. Critics loved their unique sound which was inspired by Britain’s hard rock bands of the 70s and early 80s.
The first was especially critically adored. It was called “Killera Sword.” He served as its drummer. Between 1987 and 1989 they achieved international stardom. 1987 saw the release of their first album, Soldiers of Sunrise. Cassio Audi was more than just the drummer. He also composed some of the most popular songs of the group. These songs included “Wings of Evil,” “The Law of the Sword,” “Knights of Destruction,” “The Whisper,” “Killers,” and “Signs of the Night.” But his contributions as a drummer were huge, influencing the sound of Brazilian rock as a whole.
This sound was an unprecedented massive sound that made Brazilian rock its own hard rock subgenre. In 1989 after they released their second extremely well-received album, Theatre of Fate, Audi left to pursue a career in finances. Viper is not the most successful band in the history of Brazil, but they are up there as one of its most iconic and most influential. And although Audi has moved on, he still keeps a hand in the rock music world, playing in occasional concerts.