Home› Genres› One-act opera Genre · The Operatic Forms One-act opera 5 operas catalogued under this genre. Complete Catalogue: One-act opera 1924 Golem by Nicolae Bretan, 1924 Nicolae Bretan Romanian 1958 Gallantry by Douglas Moore, 1958 Douglas Moore 1963 Christopher Sly by Dominick Argento, 1963 Dominick Argento n/a A Dinner Engagement by Lennox Berkeley Lennox Berkeley n/a A Muskrat Lullaby by unknown composer n/a English