There are a lot of programs that let you print sheet music with a computer, but most of them do not do good job. Most computer printouts have a bland, mechanical look, and are unpleasant to play from. If you agree with us on that, then you will like LilyPond: we have tried to capture the original look of hand-engraved music. We have tuned our algorithms, font-designs, and program settings to make the program produce prints that match the quality of the old editions we love to see and love to play from.
This page is for LilyPond-2.0.0 (stable-branch).