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
La Scala of melody one can catch. La Scala was originally illuminated with 84 oil lamps mounted on the stage and another thousand in the rest of theatre. To prevent the risks of fire, several rooms were filled with hundreds of water buckets. In time, oil lamps were replaced by gas lamps, these in turn were replaced by electric lights in 1883. The original structure was renovated in 1907, when it was given its current layout with 1,987 seats. In 1943, during World War II, La Scala was severely damaged by bombing. It was rebuilt and reopened on 11 May 1946, with