Before my teens my favorite stuff was all classical, first was Mozart's Eine Kleine Nachtmusik which was replaced by Beethoven's Ode To Joy, close runners up would have been Fur Elise, Piano Sonata No. 14 (Moonlight) and Violin Sonata (Kreutzer). But even to this day Ode To Joy can move me to tears it is so beautiful and being raised in a German household I can understand the lyrics which makes it all the better. Wish I could read Italian!
After that all things Zep! And when I get down some In The Light is such a great song for me to listen to.