This piece, Adagio for Strings, I believe was preformed da the LA Philharmic o somebody. I don't know. It's not the best rendition of Barber's work, but it went great with the movie. In order to appreciate it, te should see the movie.
Beethoven's famous Sonata "Aurora Waldstein" played on the Fortepiano, the precursor of the modern Pianoforte we know today. This is a live performance da marina Scalafiotti.