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
Lohengrin (opera) of the vocal score with his impressions and opinions of Wagner (this was almost certainly his first exposure to Wagner's music). La Scala produced the opera for the first time on 30 March 1873, with Campanini as Lohengrin, Gabrielle Krauss as Elsa, Philippine von Edelsberg as Ortrud, Victor Maurel as Friedrich, and Gian Pietro Milesi as Heinrich. The United Kingdom premiere of "Lohengrin" took place at the Royal Opera House, Covent Garden, on 8 May 1875 using the Italian translation by Marchesi. Auguste Vianesi conducted the performance, which featured Ernesto Nicolini as Lohengrin, Emma Albani as Elsa, Anna D'Angeri as