Facts established about this video so far:
Pianist: Dmitri Shostakovich (1906-1975)
Trumpeter: Leonid Yuriev (1913-1971)
Conductor: Looks very much like Nikolai Golovanov (1891-1953)
Orchestra: Probably the "Old" Moscow Philharmonic...
Valery Gergiev conducts Shostakovich's 7th Symphony which salutes the sacrifices made during the Great Patriotic War as survivors of the Siege of Leningrad describe the...