Complex sentence: It was during this period Opitz was given the job of producing Alberts artists the Angels (Face To Face & No Exit albums) here he finally stumbled upon gold in the form of a signature, thick guitar sound that ruled Australia's' 80s/90s airwaves.
Split into simpler sentences: It was during this period Opitz was given the job of producing Alberts artists The Angels producing theirFace To Face & No Exit albums. Opoitz stumbled upon gold by creating The Angels signature, thick guitar sound that ruled Australia's' 80s/90s airwaves.