Hey!
In the last few semesters of studying music theory and composition, I've noticed that many topics one can read about are only beneficial for very few people, because the topics are so special. For example: Late Scriabin's harmony, Algorhythmic approaches for writing Palestrina canon, Glenn Gould's style of play, and so on.
While I love some of these books, I don't see many other people actually needing them, because, come on, how many musicians are deeply intrigued by Scriabin's late harmony? Or how many composers really need (or want) to be able to write a Palestrina canon (aside from music theory studies)?
I'm thinking about topics which maybe could be relevant for more musicians than just a few. So I'd like to hear what you would like to learn, if you had a wish or two. Just for brainstorming.
I'll start: I'd like to learn more efficient strategies for my own composing. I imagine reductional theories (like Schenker or Lerdahl's Generative Theory of Tonal Music) which can be not only filled with basic harmony and counterpoint like Schenker, but with whatever goals I can have in a composition. After that, I'd like to know some strategies to elaborate these goals. This has more to do with creativity and psychology than with music theory.
Now you :)