Pink Floyd's 1970 album features their most ambitious composition to date - the 23-minute title suite arranged with orchestra and choir. The piece demonstrates the band's progressive aspirations, though results are divisive even among fans. The orchestral collaboration creates genuine grandeur in moments while occasionally feeling disjointed. Side two features more conventional Pink Floyd songs showcasing the band's psychedelic and pastoral sides. Ron Geesin's experimental composition "Several Species of Small Furry Animals Gathered Together in a Cave and Grooving with a Pict" pushes into avant-garde territory. The album represents Pink Floyd's experimental peak before focusing on more cohesive song-based material. Essential for completists and understanding the band's evolution toward their classic period.