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If anyone had any doubts about the durability of Jackson Browne’s canon, this two-disc tribute, featuring many of his friends and peers, should put them to rest. Unfortunately, the longtime troubadour of existential restlessness and uncertainty gets overly reverential treatments here from Don Henley, Lucinda Williams, and Bonnie Raitt, among many others. The artists take few chances and the choice of interpreters is much too narrow.