Question: Are Acis and Galatea by Handel, and Mussorgsky's Boris Godunov, both operatic works?
Sentence (from "Acis and Galatea (Handel)"): The work has been variously described as a serenata, a masque, a pastoral or pastoral opera, a "little opera" (in a letter by the composer while it was being written), an entertainment and in the New Grove Dictionary of Music an oratorio.
Relevant evidence: Yes