Hi, I’m the creator of Velato, the programming language (which is at http://velato.net/ ). Velato multicodes with music, much like Piet does with images. The challenge is to write a piece that works musically and programmatically. I have some better example programs I’ll post when they’re released, by an actual composer (it sounds much better than my sample Hello World).

Meanwhile, there’s a variation of the language at http://velato.net/HandsFree/ where you can whistle code live into the browser, rather than using MIDI. It has a somewhat different lexicon and a very different feel.