A great excerpt from the book Music and Learning by Chris Brewer, 1995. This book includes chapters on each method of integrating music in the curriculum. Music suggestions are included. I started playing Bach during writing workshop because of this!
http://education.jhu.edu/PD/newhorizons/strategies/topics/Arts%20in%20Education/brewer.htm
"Music is the electrical soil in which the spirit lives, thinks and invents." --Ludwig van Beethoven