 Hauser has worked with the most revered cellists such as Mstislav Rostropovich, Bernard Greenhouse, Heinrich Schiff, Frans Helmerson, Arto Noras, Ralph Kirshbaum, Valter Despalj, Philippe Muller, Thomas Demenga, Young-Chang Cho, Reinhard Latzko, Karine Georgian, Roel Dieltiens, and Alexander Ivashkin, to mention a few.He completed his undergraduate studies with Natalia Pavlutskaya at Trinity College of Music, now Trinity Laban, London and postgraduate studies with Ralph Kirshbaum as a Dorothy Stone Scholar at RNCM in Manchester and with Bernard Greenhouse in USA.In October 2006 Hauser was the only cellist chosen to perform in the gala concert at Palazzo Vecchio, Florence for the late Mstislav Rostropovich.