Here you have an interesting resource to use in music lessons: Incredibox

It is a free musical website in which you can easily create a mix by running a band of beatboxers. Increibox has a flashy interface and a it is easy to use. Incredibox offers to students a simple way to see how different melodies and rhythms fit. Also Incredibox is a good tool to motivate students to do their own creations.

www.incredibox.com

I hope you enjoy using it!