Aleph Null
is color music. No audio. It's an online, generative,
interactive, open source visual work written in JavaScript
using the HTML5 canvas tag. No plugin required. There's also
a slideshow of screenshots to
give you a sense of what it can look like in full flight.
Turn the lights off.
It's like hunting the Snark, beauty or butterflies. It takes a little practice. It's like an instrument. Or a game in which the goal is to experience color music and create visuals you like. Unlike most instruments, Aleph Null will play something whether a person is playing or not. But it benefits immensely by a human player. It knoweth not beauty, is but the instrument of thine own incandesence.
If you would first like a video introduction to Aleph Null, here is a web video Aleph Null plays on smart phones, tablets, and desktop computers.