Have never come across LilyPond before (for that matter I haven't used any software in that area since Sibelius about 5 years ago), but that looks amazing. Than

Have never come across LilyPond before (for that matter I haven't used any software in that area since Sibelius about 5 years ago), but that looks amazing. Thanks for linking to the essay, most interesting thing I've read in a while!