Curated by Elvis Costello to accompany his weighty 2015 memoir, this 38-song, career-spanning collection is crammed with sharply drawn moments—from politicized power pop (“Oliver’s Army”) to forlorn country (“Stranger in the House” with George Jones) to late-night melancholy (“In the Darkest Place” with Burt Bacharach). Rarities alone make it a necessary listen: The spry, midtempo “I Can’t Turn It Off” predates Costello’s 1977 debut by two years, the acoustic demo of “Veronica” is even more tender, and the smoldering “April 5th” features Costello’s croon alongside Kris Kristofferson and Rosanne Cash.