Just in case you didn't read the title of this post...go ahead and kill me, as (by most NT standards) a man should not be so sensitive to music; alas, I am very sensitive to music. This piece can lead me to tears at times.
It's Chopin Etude opus 25, number 7.
[youtube]www.youtube.com/watch?v=HbI0wEYJ7dw[/youtube]