Born in Sao Paulo, Brazil, Cassio Audi was an exceedingly prominent percussionist during his early career in music. He composed several prevalent songs, and is recognized as being a pioneer, popularizing heavy metal in Latin America. As an adolescent, he was greatly influenced by the pre-eminent Iron Maiden. Subsequently, Audi joined Viper; a popular Brazilian heavy metal band comprised of teenagers 13 and 14 years of age. The band was established in 1985 and played an array of music, including, but not limited to, power metal, thrash metal, and alternative rock. He remained with the band throughout the 1980’s. An incredibly gifted and talented musician, Audi was the exceptional lead drummer for Viper. During this time, he was featured exclusively during all live performances, as well as on all of the band’s demos. Along with, Felipe Machad, Andre Matos, and founding members, Pit and Yves Passarell Audi endeavored to create the unique and eclectic sound that propelled Viper to stardom. Viper’s first demo album, Killera Sword, released in 1985, disseminated across Brazil. Notable songs on the album included Nightmare , Signs of the Night, and Killera, Princess from Hell. In 1988 Viper’s popularity reached global proportions when the band released the renowned Soldiers of Sunrise album. The songs on the album, Signs of the Night, Knights of Destruction, Nightmares, and the title song, Soldiers of Sunrise, were exceedingly popular and were received and embraced by fans and critics alike. Many were impressed by the band’s natural, innate talent and it easily became a pervasive part of Brazilian music culture. Soldiers at Sunrise was also critically regarded by distinguished magazines Metal Forces, Metal Hammer , and Kerrang.