Sydney Opera House
The cost of the project so far, even in October 1966, was still only $22.9 million, less than a quarter of the final $102 million cost. However, the projected costs for the design were at this stage much more significant.
Opera Australia Orchestra
OAO's core strength is 69 players (compared with Sydney Symphony's 110) but is currently down to 59 (August 2012). Each player is selected by audition; if successful there is a trial process which may require 12 months to complete. More than 120 other musicians may join the OAO as casual musicians during a financial year; this is due in part to Occupational Health and Safety Act NSW 2000 requirements regarding noise levels 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 company. Composers Puccini, Verdi, Handel, Bizet and Wagner are standard parts of the repertory. OAO includes the ballet repertory pieces of Tchaikovsky, Minkus, and Prokofiev. Typically, opera consumes January–March and June–October. Ballet fills the rest of the year.