CDM highlights this interesting approach to music sequencing. More than just incredibly-fun-looking music software, Al Jazari is an art performance and installation (which also appears to be high in fun) -
Al-Jazari is livecoded entirely by gamepad, and employs a simple graphical language to allow robots to interact with each other and move over a terrain populated by audio triggers. The running code is displayed and edited in thought bubbles over each robot. For upcoming performance dates see this page.