LilyPond for Mac OS X Leopard and Snow Leopard LATEST NEWS (December 2009) The latest stable release of LilyPond is now compatible with Leopard and Snow Leopard! Download the latest stable release (2.12.3-1) of LilyPond and put LilyPond.app in your Applications folder. (You could use an earlier release of LilyPond if you need to because you have older .ly files, or download the latest development