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,
The Temple in the Underworld uses samples from Ludwig van Beethoven's "Moonlight Sonata". A music video was made for the track "Aposiopesis". "The Temple in the Underworld" has received positive reviews. MetalReviews.com gave it a 87 out of 100, stating: "[Its] riffs are simply amazing, prog-tinged creations of epic melody that will have you gasping with pleasurable shock even as you headbang. Seriously, the hordes of thrashers out there will have their socks blown off by even a few seconds of first track proper 'Casilda's Song', which starts out with epic heavy metal and builds until Big Boss begins to sing and snarl in his