The only thing that I can say really is to have fun doing it, to prevent getting burned out and dropping it entirely :)
Also, you shouldn't worry if you aren't good at something, especially music, because tons of people can help, including me, but I think the project would really benefit from your purely own artistic touch.
However, don't hesitate to ask for help, because another person's mind, ideas and suggestions could really benefit the project too!
I'll keep up with your progress because I'm really interested in your project. Good luck!
PrincessElis
Teasers could work. Also some concepts to help get started with it; whether that be sketches or short snippets.