Bob Seger's music was ignored by the mainstream for nearly a decade before he got big—something to remember when exploring his catalog. While he enjoyed multiple creative peaks, he was a remarkably consistent artist all the way down, from the organ-drenched hard rock of 1968's “Ivory” to a mid-‘80s live version of Creedence Clearwater Revival's Vietnam protest “Fortunate Son.” Then there's 1976's “Bo Diddley Medley,” a searing reminder that Seger was as gifted at interpreting the rock 'n' roll canon as he was adding to it.