The eye -catcher of the evening? The place of the event. Who knows it, the Schönbrunn castle theater, this gold -colored wonder chamber full of columns, including, lust and overgrown ornaments? Good: The students of the Vienna Music University and the Reinhardt seminar are familiar as an experimental laboratory for their own purposes. All the more astonished seemed to be some guests who entered the jewelry box from Maria Theresa’s time on Sunday. The occasion: The Viennese Strauß year plays the house with the operetta hit Wiener blood From the pen of the annual anniversary.