
Kavin A. answered 06/04/20
Music Teacher and Scholar
This is a really great question, and I have a lot of thoughts. Here are a few things that come to mind:
- Manipulation of thematic material: augmentation, diminution, inversion, fragmentation, etc.
- The dominant is only as boring as the listener's ear is comfortable with it. A total tonicization of the dominant key might be less interesting, for example, is modulation between varying closely related keys.
- Diminished chords are scattered throughout music history even as far back, and rather commonly used, as Bach. Keep in mind, too, that for each diminished chord there are three possibilities of inversions, and even more possibities with open-chord voicing and omission of notes. It's only as boring as its application.
- Here is a great summation of thematic function: http://openmusictheory.com/themeFunctions.html
- Dynamics, articulation, and phrasing are all also factors.
I hope this is helpful, or at the very least, that I've given you some new ideas/inspiration. Compositional structure is very clear and concrete, but good compositional taste is much more subjective, and requires experimentation.