(This is the 5th article in a series. Skip back to the first article here.) As a society we decide what pieces of music will become "classics". Most so-called Classical Music was chosen by people long dead but we living humans get to sneak new pieces into the canon occasionally. These days one of the pieces we the people are making "classical" is Terry Riley's In C - an orchestra piece of utter simplicity and massive power. It speaks to us of musical patterns and formal structures, it hints at