I use ChucK all the time since forever. And in completely different contexts. Generating blips for UI handlers or random audio data to test an FFT implementation. It really is the easiest music programming language to grok, and the built in concurrency primitives are awesome ;)
I wonder if its possible today to port the RTAudio lib ChucK is based on to the Web Audio API. Can we possibly see a ChucK.js for use in browser?