An incredibly powerful and popular two-disc album by the rock band Pink Floyd, The Wall unites stoners crying over cruel society, heartbroken lovers, reminiscing housewives, regretful 40-somethings, and everybody and anybody down in the blues. Equally valid argument could be made to call the album an opera, a well-backed poetry reading, a movie soundtrack, or just good rock.
To me Wall is notable most as one of a handful of superlative experiences in modern commercial art--times, ideas, places, persons, things that just come together in exactly the right way to make something that has never been made before and will never be made again. As others I might point out Jimi Hendrix, the Woodstock concert, the Jim Morrison myth, Jesus Christ Superstar, the Hunter Thompson legendarium, Lord of the Rings, and even the messy but unmistakeable Joy Division story.
Thank you Pink Floyd for putting in at least three or four of the several dozen bricks that make up the synthesised, total Experience of late 20th century Western art.