A young cellist named Johannes Moser. I'm not sure if he's well known, but he seems to have worked with some renowned conductors and orchestras (e.g. Berliner Philharmoniker). The orchestra was the Deutsches Symphonie-Orchester Berlin, conducted by Tugan Sokhiev. Ah, I didn't really expect anyone to know this piece. I should have known better. So you probably can imagine how intense a live performance of it could be. And how loud.