[4] In 1973 Pushee made his opera debut performing the role of Oberon in the Australian premiere of Benjamin Britten's A Midsummer Night's Dream which was staged in a professional production at the University of New South Wales.
During this period he also performed in several programs of early music with Winsome Evans's Renaissance Players.
[3] After this period, Pushee relocated to Europe in 1977 after being awarded a Winston Churchill Fellowship which enabled him to study voice with countertenor Paul Esswood in London and pursue training at the Schola Cantorum Basiliensis in Switzerland with Kurt Widmer and Rene Jacobs.
[3] He lived in Switzerland for several years, during which time he worked as a concert and opera singer in Europe.
He was particularly active at the Händel-Festspiele Karlsruhe where he performed title roles in many Handel operas, including Poro, Orlando, Admeto, Scipione, Il pastor fido, and Giulio Cesare.