Complex sentence: In the following years he travelled, but enthusiastic about Punk he formed the band Doll by Doll in 1978 who, despite having a unique and powerful live act, never broke through to the mainstream.
Split into simpler sentences: In the following years he travelled, but enthusiastic about punk, he formed the band Doll by Doll in 1978. Despite having a unique and powerful live act, this band never broke through to the mainstream.