Good clical music?

Try listening to Beethoven's other symphonies, such as #7, and 3, and 6...and 8! The "Emporer" Piano Concerto (no 5) always gives me chills (particularly the second movement. Also, Brahms 3rd symphony is beautiful. I like a lot of Tchaikovsky works. One of my favorites is the Pathetique (Symphony #6). If you want to listen to a very beautiful but sad piece, listen to Samuel Barber's Adagio for Strings. I don't know why, but I just love that piece. It's very melancholy. Try listening to some violin concerti, by the composers you already seem to like (Tchaikovsky, Mozart, Beethoven...Brahms).