What makes Back into the Future by Man notable?

The album marked a significant moment for Man, showcasing their evolving sound and expanding their audience. Notably, it includes lengthy tracks like 'C'mon' and 'Jam Up Jelly Tight / Oh No Not Again,' which are emblematic of the progressive rock era's penchant for extended compositions, contributing to the genre's experimentation during the early 1970s. Released in January 1973, 'Back into the Future' is Man's fifth album, following their 1972 release 'Rhinos, Winos and Lunatics.' At this point in their career, they were solidifying their reputation within the progressive rock scene, known for their distinctive blend of rock and Welsh folk influences.