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 structural changes in 1903. In 1929 a dedicated band of Denver preservationists and music lovers formed the Central City Opera House Association to perform a renovation and re-open the opera house. It was a volunteer-driven effort led by Ida Kruse McFarlane, Edna Chappell and Anne Evans that resulted in an extensive restoration of the Opera House in 1932. In the 1980s and 1990s, the entire structure was restored, including the foundation and replacement of the 1920-era lighting relic by a computerized lighting system. In 1999, wooden chairs were replaced with plush new theater seating. With the 1878 grand opening, Central