Rock opera is an opera in rock music. It fills the gap between a concept album, released by single band, and a musical, which is a theatrical play featuring songs.
Rock opera may be composed and instrumented by a single rock band, or by musicians from the different bands. Nevertheless, unlike a simple concept album, it features many vocalists, who perform their roles, and a script.
Rock operas may be filmed and/or adapted for stage as musicals.
By rock music subgenre, there are progressive rock operas, metal operas, and punk operas. .
