Among the classes I took in graduate school, many were less challenging, intellectually speaking, than many undergraduate courses. Yet, there remains one course that challenged me the most, Music 423 at Case Western Reserve University in 1997 with Professor John Seuss. The class was one centered on musical history and philosophy and aesthetics. It started out with 5 students in the class, and on the last day, when we had to do student presentations, there were just 2 of us left. Using my new Fujitsu ScanSnap, I've decided to post my 3-ring binder for this course online for others. It's a rich trove of thought. Perhaps you can find it more useful than I have. Music 423 Notes and Binder (PDF - 50 MB).