Painter Larry Rivers, who played saxophone in the bands of Herbie Fields, Jerry Wald and others before switching to the pictorial arts in the 1950s, will bring a nine-piece band to the Hirshhorn Museum Saturday night at 7:30 for a concert sponsored by the Smithsonian Resident Associates. The East 13th Street Band is peopled with other painters, including David Levy (dean of the Parsons School of Design) on baritone saxophone, a James Joyce scholar (pianist Myron Schwartzman) and several full-time musicians. Rivers says the program will be largely "swing and be-bop," but with a rather odd edge on it. Rivers' paintings will be on display and the concert will be followed by a champagne-and-strawberries reception outdoors on the museum's plaza. Call 357-3030 for information.

"I find there are amusing and obvious connections between them," says Rivers of the two media, "but they're quite different, too. One involves more or less being alone and getting a hold of pigment and brushes. Jazz is a social art and physically the sensations are stronger. You're buoyed along by what notes or sounds do to your spine. . . . You are dealing with five, six, seven points of view. But when I spread some red paint out on my palette I don't have to look around and ask, 'You get it?' I just go ahead and do it."