GNU LilyPond is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . A copy of the license is contained in the file COPYING. The following exceptions apply: * It does not apply to the documentation files (contained in the directory tree Documentation/). The documentation is covered in the file LICENSE.DOCUMENTATION. * It does not apply to ly/articulate.ly, which is only licensed under the GPL version 3 (not any later versions). * If you create a document which uses fonts included in LilyPond, and embed this font or unaltered portions of this font into the document, then this font does not by itself cause the resulting document to be covered by the GNU General Public License. This exception does not however invalidate any other reasons why the document might be covered by the GNU General Public License. If you modify one or more of the fonts, you may extend this exception to your version of the fonts but you are not obliged to do so. If you do not wish to do so, delete this exception statement from your version.