Anthony Mattox is a Baltimore based Digital Artist and Interaction designer. In the blog section of his website there are a number of Processing based projects going back over several years. You will be able to look at both outputted art and code examples that outline his practice and research across a variety of approaches including generative and audio driven workflows.
Theres also some good introductory tutorial files that you can download that explain how to employ some basic programming concepts such as loops, arrays and functions within the Processing language.
Particle Flow 2 from anthony mattox on Vimeo.
