Dr Sam Aaron and Ben Smith at the Sonic-Pi Live and Coding Toolkit Launch in Cambridge.
Sonic Pi is a Live Coding programming language, written by Sam Aaron. More info at http://sonic-pi.net/
Ben Smith on guitar (http://bensmithguitar.com/)
Sam Aaron on Sonic-Pi (https://twitter.com/samaaron)
More on their live performances here: https://twitter.com/Poly_Core