Musicarnival was a music "tent" theater on Warrensville Center Rd. in Warrensville Heights, among the first of its kind. The theater was expanded in 1958 from its initial seating capacity, growing from 1,500 to 2,563. The theater was used for performances of musicals, operettas and operas, and also hosted a number of famous musicians and rock bands, such as the Mothers of Invention, Duke Ellington, Stan Kenton, Dave Brubeck, The Who and Led Zeppelin.
Musicarnival closed in August 1975.