20Up sees the AAO return to the place of its first concert: the Malthouse Theatre in Melbourne. A total of twenty-five musicians will perform a range of works from Ringing the Bell Backwards, the first work written for the AAO by Founding AD Paul Grabowsky which premiered at Malthouse in 1994; Passion, which is the AAO’s take on Bach’s St Matthew Passion; Testimony, Sandy Evans’ extraordinary tribute to Charlie Parker; Struttin’, Eugene Ball’s impressionistic take on Louis Armstrong, and a brand new commission from young composer, Austin Buckett called Virtuoso Pause.