Recorded largely at Abbey Road between 1972 and 1973, Dark Side of the Moon turned Pink Floyd from a cult act into one of the best-selling bands in history, and this Classic Albums entry pulls the record apart track by track to show how. David Gilmour, Nick Mason, and Richard Wright sit at the original mixing desk with engineer Alan Parsons, soloing individual tracks so you hear Clare Torry's wordless vocal on "The Great Gig in the Sky" isolated from the band, or the cash registers and tape loops built into "Money" before anyone plays a note of music. Torry herself describes showing up for a session she thought was minor and improvising the take that ended up defining the song. Storm Thorgerson explains how the prism cover design came out of Hipgnosis brainstorming sessions rather than any grand concept. The film treats the album as a piece of engineering as much as songwriting, and the isolated tracks are the reason to watch.