From OLPC

Lilypond is a piece of free software for typesetting music.

[edit] Getting Started

[edit] Installation

Open up the Terminal activity and type these commands.

wget http://download.linuxaudio.org/lilypond/binaries/linux-x86/lilypond-2.11.39-1.linux-x86.sh
sh lilypond-2.11.39-1.linux-x86.sh

This will download the development version of lilypond and install it to your home directory. You may want to add ~/bin to your PATH to avoid having to type ~/bin/lilypond every time. Add this to the end of your ~/.bashrc:

PATH=$PATH:~/bin

[edit] Create a Lilypond file

This is a vast subject. See the lilypond documentation for more information. For now just create a simple file test.ly:

\version "2.11.39"
{c' d' e' f'}

[edit] Running

lilypond test.ly

The current directory should now contain test.pdf and test.ps.

If you see memory errors try entering the following into the terminal before running:

export LILYPOND_GC_YIELD=50

The default is 70. Generally lower numbers mean use more CPU and less memory. Higher numbers mean use more memory and less CPU. 50 seemed to work, but I didn't do extensive testing.

[edit] Opening the PDF

Open up the Browse activity and navigate to file:///home/olpc/. Go to the directory where you ran lilypond and click on test.pdf.

[edit] Using Lilypond on the OLPC

Right now it is rather clunky to use Lilypond with the terminal, browser, and reader. An activity which would combine an editor with a pdf viewer would be ideal. (Examples: http://lilypondtool.organum.hu/, http://lilykde.googlecode.com/)