Searching

Yesterday I was watching the ARTS channel (or that's what the icon says in the corner when you're watching the channel anyway) and there was a production on. It was like a play without words. People were acting. There was this famous classical song playing the whole time. I'm not sure about the details, but the production was entitled "Stairway to Lennon" and the whole thing was like depicting Russian history or something like that. There was that hammer thing and that C thing.

However, I'm at a loss for what the title of the song may really be and who the composer was/is.