This is great. The more you do this, the more you'll realize what your voice is, why you like certain things, and what you want to say.
What I've been doing is just posting a variety of tunes (primarily ones I like, to be honest). That's a perfectly legit way to teach a course. I can't recall ever being in (or teaching) a literature class where profs gave examples of things they did not like. Tomorrow tell us why you like a certain piece. You can also easily go back and add text to earlier pieces.