Hola Molly and welcome to the Music Lingua crew!
I am Susanne from Great Falls and teach German and French.
You are right, this is a great program and I am sure you will enjoy teaching it. I have a little advice for you that helped me to get my classes going:
In order to practice for my first unit, I contacted the public library and playgroups in the area in the summer and offered them a free sample class. At the end of the class, you can announce your upcoming unit and pass out brochures to the families.
Also, if the program is new to your area, it makes sense to contact the newspaper and ask them, if they want to write an article about your classes. That’s a great advertisement for you.
I wish you good luck!
Susanne