What makes Opus X by Chilliwack notable?

'Opus X' marked a notable moment for Chilliwack as it reached No. 24 on the Canadian charts, showcasing their ability to merge catchy hooks with progressive elements. The album received positive reviews from critics and helped maintain their presence in a rapidly shifting musical landscape during the early '80s. Released in 1982, 'Opus X' was Chilliwack's seventh studio album, following their commercial success with 'Dreams, Dreams, Dreams' in 1981. At this point, the band was solidifying their reputation in the Canadian music scene while experimenting with a blend of genres that would define their sound.