The AOZ, an orchestra composed of around 70 students and employees of ETH Zurich and University of Zurich, rehearses orchestral music under expert guidance and brings it to the concert level. The joy of making music is combined with serious work in order to achieve high level performances. Also the interdisciplinary contact between the various academic disciplines as well as friendship and sociability is seen as strong bond among the members. Last but not least, the AOZ is an essential part of the cultural offerings for students in Zurich by presenting the audience at least four symphonic concerts per year.