Three people told me that they'd like for the tool to have the ability to export MIDI files, as this would allow loading the generated content into music editing software. It turns out there's a file writer W3C API in the works that would make implementing this fairly easy, but unfortunately, no browsers seem to support it at this time, not even dear Chrome. On another note, I started reading Virtual Music, a book about computer-generated music which I'd bought a couple months ago.