I have several students working on more complex rhythms this year, including a variety of cross rhythms. This requires such an incredible amount of hand independence, and is often very difficult for students to grasp, so I was doing some research to find more resources on the topic. I came across a fabulous blog post with a downloadable PDF called “Cross Rhythms Without Tears” by Christine Brown. The 3-page overview gives some very helpful (and mathematical) explanations, plus a number of excerpts from repertoire where cross-rhythms are encountered, along with suggestions for practicing them. What a great tool that I can pass on to my students!