Orchestra "Fis-dur" achieved success after success: performances, tours, great delight and standing ovations of the satisfied audience. In the year 1947, there was a large change in the orchestra with the new top musicians: Predrag Ivanović (trumpet), dr Aleksandar Pejić (accordion), Milovan Vukajlović-Genije (piano and accordion), Predrag Stefanović-Grof (-Count)(trombone) and Branko Pejaković (bass). Only Sodermajer and Živanović remained of the old members.