As fans of David Letterman know, Warren Zevon is on his way to the celestial CBGB’s, and he’s teaching us all a little something in the process—about continuing to work his craft instead of just hanging around at the Reaper’s bus stop. Even Bob Dylan, who’s done his share of laurel-resting over the years, has taken a lesson from Zevon: On his current concert tour, he’s covered the man’s “Mutineer,” “Boom Boom Mancini,” “Lawyers, Guns and Money,” and “Accidentally Like a Martyr.” Heartening news for concertgoers—until they hear that the Great Woolly Mumbler is also essaying “The End of the Innocence.” Request a cover of Mojo Nixon’s “Don Henley Must Die” at 8 p.m. at George Mason University’s Patriot Center, 4400 University Drive, Fairfax. $40. (800) 955-5566. (Pamela Murray Winters)