music is what feelings sound like

So I just read Jordan's blog about iPod use in the classroom during tests and whatnot, and I decided that it was a great connection to music in general in the class room!  When I was in high school, teachers always played piano music during tests and quizzes.  I calmed the students down and made for a more placid environment.  I looked online at real results for this and found a web site that was discussing a study of classical piano music in operating rooms.  They concluded that the patients that had classical piano music playing during surgery had significantly lower blood pressure and heart rate than those patients without music!  

I like to listen to the George Winston Summer Collection when I do my homework.  It really helps!  Anyone else listen to something of the same variety?