F[-FF]F[+FF]F

An L-system plant grown in JavaScript with the simple formula, F → F[-FF]F[+FF]F, and rendered with HTML5.

An L-system plant grown in JavaScript with the simple formula, F → F[-FF]F[+FF]F, and rendered with HTML5.

It sounds interesting too, when output as MIDI as well as graphics, at least to fans of Steve Reich and Terry Riley .