Complex sentence: His musical career, though, started when he was fifteen in an entirely different genre from lyrical song, being a member of a cover band and later the lead singer of a heavy metal band called "Conspiracy" when he was seventeen years old in Luzern.
Split into simpler sentences: His musical career, though, started when he was fifteen in an entirely different genre from lyrical song. He was a member of a cover band and later the lead singer of a heavy metal band called "Conspiracy" when he was seventeen years old in Luzern.