Opera Australia Orchestra associated with working in the Sydney Opera House orchestra pit. The OAO provides orchestral accompaniment to Opera Australia and The Australian Ballet and is one of the few opera orchestras in the world that operates in a repertory style of operation over a period, or season, that can be some months in length. Other opera houses that operate this way are The Metropolitan Opera in New York City, The Royal Opera House Covent Garden in London and La Scala, Milan. 'Repertory style' also infers that over time, certain composers and operas become considered 'standard' to the working operation of the
Central City Opera House Central City Opera House The Central City Opera House is located in the Central City/Black Hawk Historic District in Central City, Colorado, United States. It was constructed in 1878. It has offered operatic and theatrical productions that drew prominent actors and performers in the late 19th-century, and in the early 20th-century it was a motion picture theatre. The opera house was designated to the National Register of Historic Places in 1973. In 1877, the citizens of Central City formed the Gilpin County Opera House Association to fundraise for the state's first opera house. Denver architect Robert S. Roeschlaub designed the