[Shaun]

Mozart's 11th piano sonata.
Camille Saint-Saens - Aquarium.
Jules Massenet - Meditation From Thais
Ludovico Einaudi - "I Giorni", "Divenire" [although this is a recent composer still alive, only born in the 50s I believe].
Tchaikovsky - 1812 Overture / Romeo and Juliet
Puccini - Madame Butterfly
Wagner - Flight of the Valkyries [I think everyone's a little Nazi when it comes to this. <3]
Prokofiev - Dance of the Knights