What is "skandalkonzert"

The of March 31, 1913, was a concert of the (Vienna Concert Society) conducted by Arnold Schoenberg in the Great Hall of the Musikverein. The audience, shocked by the expressionism and experimentalism of the Second Viennese School, began rioting, and the concert was ended prematurely. A punch administered by concert organizer Erhard Buschbeck became the subject of a lawsuit, whereby operetta composer Oscar Straus, heard as a witness, testified it had been the most harmonious sound of the evening.