This is a really interesting rhythmic exercise by bass player Thomson Kneeland. It is applicable to the piano, and I have been trying it out recently. He sets a metronome to 52 bpm. He then plays several measures of one note per beat, two notes per beat, three notes per beat, four notes per beat, five notes per beat, six notes per beat, seven notes per beat and eight notes per beat. It is an excellent way to practice dividing a pulse. I have used either scales or arpeggios so I am not focusing on note choice, but instead focusing on the the timing. This is a challenging exercise, but interesting. I can't execute it as well as Thomson, but I think I'll keep working on it.