Opera Nova Bydgoszcz and on July 2, Offenbach's operetta "Orpheus in the Underworld". "Opera Studio" was renamed on March 3, 1959, "Musical Theatre of Opera and Operetta" (), so as to meet cultural expectations of the inhabitants of the entire Bydgoszcz Voivodeship. A year later, on March 1, 1960, the institution was nationalized. In 1963, the "Musical Theatre of Opera and Operetta" had then its own orchestra established, putting an end to the use of musicians from the Pomeranian Philharmonic. Bydgoszcz musical scene, once nationalised, changed its name several times: "Opera and Operetta" (1964), "National Opera" (1980), "Opera Nova" (1990), and from 1996,
Orpheus in the Underworld We now meet Aristée – who is, in fact, Pluton (Pluto) – keeping up his disguise by singing a pastoral song about those awful sheep ("Moi, je suis Aristée"). Since Pluton was originally played by a famous female impersonator, this song contains numerous falsetto notes. Eurydice, however, has discovered what she thinks is a plot by Orphée to kill Aristée, but is in fact a conspiracy between him and Pluton to kill her, so Pluton may have her. Pluton tricks her into walking into the trap by showing immunity to it, and, as she dies, transforms into his true form