Correction: May 9, 2016
Because of an editing error, an earlier version of this article misspelled the given name of a composer whose work was performed in Palmyra by Russian musicians. He was Johann Sebastian Bach, not Johan. And a picture with this article was published in error. It showed a concert in Palmyra on Friday — not the concert by the Russian musicians, who played on Thursday.
Expect Roldugin to send in a correction that he never missed a single note.