19 year old American Bulgarian looking for accomodation in Vienna

I am a nineteen year old musician born in Bulgaria and raised in America, and will start my voice major at the University of Music and Performing Arts in October, 2016. I am fluent in English and Bulgarian and will be learning German during my stay in Austria. I am a Christian and would prefer to have Christian roommates, although that is not a requirement. I am looking for a single room, preferably in an apartment with roommates (female only). As a singer, I cannot live with smokers. Although I have no pets of my own, I would not mind a roommate with one. In my free time I love to attend concerts, especially in classical music, read books with a cup of tea, and travel. I would like to move into a furnished room in October, and, if space allows, bring my electric piano with me.