The Rhythm Matrix is a study of polyrhythms and polypulses by Danish bassist and composer Kenneth Dahl Knudsen, and here it is available as an e-Book (PDF).

The Rhythm Matrix includes the following topics:

• Basic Polyrhythms

• Advanced polyrhythms

• Reference polyrhythms

• Reference rhythms

• Polyrhythms in different time signatures

• 3 polyrhythms at the same time

• Polypulses played in order (slow to fast)

About The Rhythm Matrix