Public radio’s American Routes is celebrating its 15th anniversary on the air with a dance and concert in New Orleans and a discount for stations adding the show. The April 19 concert at the New Orleans Rock ‘n’ Bowl will feature the Treme Brass Band, the Lost Bayou Ramblers, Irma Thomas, Ivan Neville and other luminaries of the Louisiana and New Orleans music scenes. Sponsored by WWNO-FM in New Orleans, the fundraiser for the music program will be recorded and distributed to stations for broadcast during the week of July 4. Hosted by folklorist and anthropology professor Nick Spitzer, American Routes airs on 260 stations. It has faced challenges to maintain steady carriage as more stations adopt news/talk formats and has “won and lost” some battles in that effort, Spitzer told Current in an email.