Although this exercise is not very complicated, it is important to work at slow speeds at first to control all the strokes and the co-ordination of hands and feet. Listen closely to the metronome so that you can read all the bars without having to stop. This takes some time to get used to. Be careful to avoid mordents. Be very exacting with yourself in your first steps. Then lower the speed by 5-point intervals until you reach 40. Once you have done this you can increase the speed until you reach your limit. Accentuate sixteenth notes (four strokes per beat) with fluency and at the same time combine them with the rest of the drumkit. Control their co-ordination so that you can accentuate with complete accuracy. Master the "binary" concept, a very useful one for most contemporary styles, such as rock, pop, funk, techno, etc. This exercise will make you pay close attention to rhythmic changes. Listen carefully to make sure not to deform the figures. The dynamics of these combinations must be tightly controlled. Be careful with the accents and make sure that they do not distort the sound of the rest of the figure. It is better if the difference in volume between the accents and the other strokes is not too extreme; remember that the strokes all have the same value (sixteenth notes).