American MusicFest has been renamed 'Harrisburg Jazz and Multi-Cultural Festival, Hosted by Mayor Linda D. Thompson' | - PennLive.com Harrisburg’s annual free Fourth of July party has a new name and a new emphasis on jazz and world music. The American MusicFest has been renamed the Harrisburg Jazz and Multi-Cultural Festival, Hosted by Mayor Linda D. Thompson. The name change surfaced on the city’s Web site. City offices were closed for Good Friday, and efforts to reach the mayor or her spokesman, Michael Holmes, for comment were unsuccessful. The name foretells a new direction for the free festival, which will be held July 3-5 in Riverfront Park.