Today's Piano Puzzler

From the archives.  As I wrote last time around -- This week's contestant is Daniel Swartz from Clark Summit, Pennsylvania.  Happily, I actually got the composer style this week.  Happily, because I had more trouble with the hidden song.  There's a long passage where it's clear Bruce Adolph is playing the hidden tune -- but for the life of me, I couldn't get it.  And it's perfectly well-known.  And Adolph explains afterwards, most of the song is well-hidden...though the contestant did guess it.