This is reported by RIA Novosti with reference to the St. Petersburg Drama Theater named after V.F.Komissarzhevskaya, where Beck was in charge of the musical part.

“Today, May 15, at the age of 80, the head of the musical section of our theater, virtuoso pianist, Honored Artist of Russia Mark Beck, has died,” the theater said.

Earlier it was reported that Honored Artist of Russia Kira Kreilis-Petrova died at the age of 89, according to the Alexandrinsky Theater.