Immortalized in the song "Seventy-six Trombones" featured in the musical play "The Music Man , the fictional town of River City, Iowa, had scads of the brass instruments with the familiar slides leading their parade. Next week, the parade is in Columbus, Ga., which will host hundreds of trombone players from around the world, including Statesboro. The Georgia Southern University Trombone Ensemble will perform in the 2013 International Trombone Festival at Columbus State University from Wednesday through June 29.