On the other hand, things that are definitely worth keeping include:
- Tony Barone's handwritten keyboard harmony exercises (I should probably take these out and start practicing them again. Tony always made me transpose them into all keys, especially the ones with 5 or 6 flats and sharps. This is something I should work on if I'm going to be serious about taking the American Guild of Organists Service Playing certification exam, which requires being able to transpose an SATB hymn up or down an interval up to a major second.)
- John Boccio's meticulously detailed, typed notes on freshman classical mechanics, numerical methods, and quantum mechanics.