Generative music is music that is ever-different and changing, and that is created by a system. One of Steve Reich’s most famous pieces is “Clapping Music,” (linked above) where he created a rhythm and overlays the same rhythms on top, but one or more eighth notes apart from the original version. The interest and music is created from how the same rhythms interact with each other depending on how much time is spaced in between the two rhythms. The video above shows the rhythm which can be counted as “one two three, one two, one, one two” in which the commas are counted as rests. When shift is called, the rhythm is shifted one eighth note apart from the original and the distance increases until they are both in unison by the end of the clip.