I've always been a fan of the great classical pieces of music from Beethoven, Mozart, Brahms, to all the other great composers. However, one holds a special place in my heart by Claude Debussy with his piece called "Clair de Lune" from "Suite Bergamasque" which I use almost nightly to stem my insomnia and quiet my wayward frazzled brain.
Using a neat graphical software called "Music Animation Machine" one can put in a MIDI file and see the visual representation of it. Performance and graphics were done by Stephen Malinowski. So, sit back...relax and let the music take you away. [via - haha.nu]