The focus in this chapter begins with "rotation." In the first exercise, the attack points within the measures rotate. There are 3 attacks points in the first measure which are 1.5 beats apart.
In the second measure they sound the same but start in different parts of the measure – still 1.5 beats apart. The beats become closer together after that. Attacks occur gradually later in the measure. All are the same in the sense that there are 3 notes equally spaced in each measure but different attack points within the measure. There is a changed number of rests.
Subsections
