<P> On his return to Australia in 1989 the board of the Australian Chamber Orchestra appointed him artistic director and lead violinist--at only 25 years of age . Under Tognetti's leadership, the orchestra has earned a reputation as one of the leading chamber orchestras in the world . The Times has gone so far as to say "This group must be the best chamber orchestra on earth ." </P> <P> Tognetti is an extremely versatile violinist, performing on modern and electric instruments . For example, with Australian rock musician Iva Davies, he co-wrote and performed on 31 December 1999 for an international millennium broadcast The Ghost of Time on electric violin, with the Sydney Symphony Orchestra . </P> <P> He has also performed with various musicians from different genres . His musical abilities extend to arranging music for different ensemble types . He has arranged the music of composers such as Janáček, Szymanowski, Paganini, Beethoven, Ravel and Satie, greatly expanding the chamber orchestra repertoire . In 2008, he wrote The Red Tree for children's choir, chamber orchestra and projected images with Michael Yezerski, inspired by the illustrated book by Shaun Tan . </P> <P> Tognetti maintains a busy schedule in Australia and globally with the Australian Chamber Orchestra, as well as with other groups . He has played at events such as the Salzburg Festival and has made appearances with the Handel & Haydn Society (Boston), Hong Kong Philharmonic, Camerata Salzburg, Tapiola Sinfonietta, Irish Chamber Orchestra and the Nordic Chamber Orchestra . He also conducts opera, making his debut in the 2001 Sydney Festival, conducting Mozart's Mitridate, re di Ponto . </P>

Who was known for greatly expanding the orchestra
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