I had seen an earpiece in Yo-Yo Ma’s ear and wondered what that was about.
“It would have been a disaster if we had done it any other way,” he said in a telephone interview on Thursday. “This occasion’s got to be perfect. You can’t have any slip-ups.” The musicians wore earpieces to hear the playback.
Words spoken by Mr. Perlman.
And …
“I really wanted to do something that was absolutely physically and emotionally and, timing-wise, genuine,” Mr. Ma said. “We also knew we couldn’t have any technical or instrumental malfunction on that occasion. A broken string was not an option. It was wicked cold.”
I read it and more here.