Here's a good playlist for a variety of moods.
If you're about to go sarging (I'll list the piece's title, composer, and a good recording):
-Gnomenreigen, Franz Liszt, Rachmaninoff or Horowitz
-Hungarian Rhapsody #2 (preferably the Horowitz arrangement), Franz Liszt, most recordings I've heard are decent
-Sonata Op. 27 No. 1 (Quasi una fantasia), Beethoven, Richter's is nice (if there's ever been headbanger music in classical, this one is it)
-Rachmaninoff's 3rd Piano Concerto (Movement 3), Rachmaninoff, Horowitz and only Horowitz (the entire concerto is awe-inspiring, but the 3rd movement especially gets the blood boiling. The first is probably the greatest single movement in any concerto, EVER)
-Scherzo #1, Chopin
To get the girl in the mood (remember, this will mostly be slow songs, and I won't recommend recordings cus I'm lazy XD):
-Liebestraum #3, Franz Liszt
-Any nocturne will work, but Op. 72 No. 1 in E minor is one of my favorites, Chopin
-Moonlight Sonata Mov. 1 or Fur Elise always work, since they're popular. Both are by Beethoven
-Intermezzo Op. 112 (I think it's 112, the A major one?), Brahms (I've never seen a girl NOT get teary after hearing this piece)
-Impromptu #3, Franz Schubert, very emotional.
When you're ready to screw (no, really, there's classical for this):
-Pathetique Sonata Mov. 1, Beethoven, this piece is very fast-paced, yet not harsh like the one's in the first section.
-Scherzo No. 4 in E major, Chopin.
Just a sample compilation. There's literally millions of works that are appropriate for any occasion, and I didn't even get into Mozart, Bach, and Haydn. If you want some Mozart, check out Sonata K.330, and for Bach, take a look at the Cminor Partita.
