Once I attended a rehearsal where Kurt Masur conducted Rhapsody In Blue. He stopped the orchestra at one point and leaned over the podium, glowering. “NEIN!!!,” he bellowed. “It duz… not… SCHVING!!!!” For the musical equivalent of the above comment, nothing beats ̶a̶ ̶J̶e̶t̶2̶ ̶h̶o̶l̶i̶d̶a̶y̶ Jonas Kaufmann turning himself into Kermit The Frog to croak his way through some Mariah Carey. I’d rather hear Mariah sing Siegmund. (German directors: this is NOT a free Konzept.)