Brett DeanBrett Dean is on a roll. In the past few years, the 48-year-old Brisbane native has conducted and recorded (for BIS) his Viola Concerto and worked with some of the world’s finest orchestras, including the Los Angeles Philharmonic and Berlin Philharmonic, where he played viola for 16 years. That orchestra’s celebrated conductor, Simon Rattle, encouraged Dean’s nascent compositional career, and this year led the Royal Liverpool Philharmonic in the premiere of three arias from Dean’s first opera, Bliss, which debuts next year. Last year, Ensemble Wien-Berlin performed the premiere of his chamber work Polysomnography, a Lucerne Festival commission, and he’s featured composer at this year’s Santa Fe Chamber Music Festival and Cabrillo Festival.