Franz Xaver Gerl have been the composer of the aria "Ein Weib ist das herrlichste Ding", for which Mozart wrote a set of variations for piano, K. 613 (the composer may instead have been another singer-composer in the troupe, Benedikt Schack). Mozart gradually came to participate more in the activities of the Schikaneder troupe, culminating in his opera "The Magic Flute" (1791), with libretto by Schikaneder. Gerl premiered the role of Sarastro, and continued to sing this part in many performances through 1792. He left Schikaneder's troupe in 1793. Gerl may have been a participant in a rehearsal of Mozart's "Requiem" on the
Opera Australia Butterfly", "Turandot", "Aida" and "Carmen" have played. In 1956, the Australian Opera Company was formed in Sydney under the auspices of the Australian Elizabethan Theatre Trust. It commemorated the Mozart bicentenary by presenting four Mozart operas in all capital cities, travelling more than 10,000 kilometres, and giving 169 performances. By 1957, it changed its name to the Elizabethan Theatre Trust Opera Company. In 1959 the company's laid-off singers gave the first of many regional tours (presented by state Arts Councils) with Rossini's "The Barber of Seville" using reduced scenery and conducted from the piano by Georg Tintner (Victoria, New South