[Zope] actually getting into it.

I'm building a product called mcp: music control program: it will be front end to my shoutcast server and my audiotron. \Initially, I created a zclass called cdclass, but it seems to me I might want to have classes for: artist, title (where title is more or less cdclass) and track. In looking at the book class in the zopebook, analogously, there should be author and publisher classes. I understand they were trying to keep it very simple. can antone give me any pointers on how you'd go about this?