First day of class:
1. introduce yourself
2. state all your relevant credential blahblah. If it's a long list, speak quickly. If it's a very long list, distribute a handout and mention a few of the highlights.
3. maybe a very brief background on song writing ("Our first records of song writing go back to the ancient Babylonians etc. etc.") Research is not important. You want to make them feel like part of a great and noble tradition.
4. pass out the lyrics and perform one of your songs
5. in-class assignment (last 15 minutes): write a short essay on "why I took this class, what I've previously done in this field, and what I want to get out of the class."

You should have your work cut out for you. And sometime later in the course, you absolutely need to talk about copyrights.