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Review: We've been treated to reissues of everything else from PJ Harvey's spectacular catalogue, so it's only right we get a chance to savour the deeper cuts that shape out the persona of the high priestess of alternative rock. Gathering together an exhaustive 59 B sides, demos and previously unreleased tracks, this six-LP box set takes us into the heart of Polly Jean's writing process, showing the raw power in the songwriting when it's just her voice and an overdriven guitar, and showing us the broader possibilities of songs which didn't make the cut for the studio albums. This is a true treasure of music getting the authoritative release she deserves.