Helpful code

The pieces of code both have sound elements that I think will be useful for creating my sound code. I think this is a good starting point because I don't really have any idea how to generate sound and by dissecting and analysing these bits of code I will be able to better understand how to use it.

http://www.openprocessing.org/visuals/?visualID=15427

and

http://openprocessing.org/visuals/?visualID=25795