Tim Spradlin and Jimmy Guilford revive a touch of cabaret swagger with a tribute to the likes of Frank Sinatra and Nat King Cole, as well as an anthology of artists they inspired, including Roy Orbison, Gene Pitney and, of course, Elvis. Guilford’s roots are in this era — he sang with the Ink Spots. And Spradlin has built his reputation around interpretations of the American Songbook. The show is Aug. 23, 8 p.m. at Unity of Indianapolis, 907 N. Delaware St. Tickets are $10. Call 317-329-3537 for reservations.