If you ask professional jazz, rock, or fusion drummers to name the single most influential book on limb independence, the overwhelming answer is (originally titled Advanced Techniques for the Modern Drummer ).
To master polyrhythms, start by practicing simple ratios such as 2:3 or 3:4. Use a metronome to help you stay on track, and begin with slow tempos. As you become more comfortable, gradually increase the tempo and complexity of the rhythms. advanced techniques for the modern drummer pdf