In 1972, in the Bavarian town of Ingolstadt the teenaged guitarist Hans Ziller, put together a rock band called Cacumen with his guitarist brother Karl and gathered a bunch of friends to complete the band. The name of the group was taken from a school test Hans had done and it translates from Latin as "the top of a mountain". For the next six years, the band played in small local venues, but formed a fan base in their hometown. In 1978, the group consisted of Hans and Karl on guitars, Horst Maier on guitar (in 1983, Maier's last name would become Maier-Thorn), Hans Hauptmann on bass and Hans Forstner on drums. When the band started searching for a replacement singer, Claus Lessmann, a fellow student of Hans', was hired.