INDIANAPOLIS—Twenty minutes into his set at Sunday's JVC JazzFest, jazz guitarist Lee Ritenour recognized the entire audience from last year's event. "There's that one gray-haired guy with the ponytail and the Rippingtons T-shirt," Ritenour said to himself while playing. "And the fat guy who sits on a stack of old issues of Down Beat, just nodding his head. And there's that frizzy-haired lady with the Playboy JazzFest blanket who comes with her son. My, he's grown." After a rousing ovation at the end of his set, Ritenour thanked the crowd and said, "See you all next year."