The 150-year-old Hanon exercises are a super-efficient way to train your fingers. But why not train your rhythm skills at the same time?
Thirty or so progressive rhythmic patterns for you to master in an easy, stationary five-finger position first. Then you apply them to the Hanon exercises, which are also demonstrated for you. Anybody can get them - a quick listen to the examples and your daily finger warm-up has doubled in functionality!