 Phil at the piano teachers house, when he is fumblingly playing  Sergei Rachmaninov (qv)s "Rhapsody on a Theme by Paginini", is  actually Bill Murray (I) (qv) playing. He does not read music, but  he learned that much of the song by ear. Sergei Rachmaninov (qv)s  "Rhapsody on a Theme by Paginini", specifically its 18th Variation,  was also used in another time fantasy movie,  _Somewhere in Time (1980)_ (qv).