I recently attended Tap City 2014. Fun! Remember my post on music and tap dance? Well, this festival really encouraged the musicality of tap dance. The festival offered opportunities to study both rhythm tap and Broadway-style tap.
It's great to get yourself in a situation where you can learn about your field in different ways. For example, I don't think the average person thinks of extreme musicality when thinking of tap dance. Yes, maybe the rhythmic aspect is thought of, but what about the different tones the taps make? Did you realize that where you hit the tap can make a different tone? Being attentive to these things in tap will likely help you and/or your student(s) to be more aware of such things when playing other instruments, and going to a festival like this can give you new perspectives and exposure to different teaching styles.
How about improv? Barbara Duffy taught a great workshop on tap improv, which could help with musical improv.
Also, there was quite a bit of scatting going on, especially in Brenda Bufalino's residency.
Have you ever attended a festival or workshop for another field that could be applied to your music teaching?