@documentlanguage en
@afourpaper
+@dircategory GNU LilyPond --- the music typesetter
+@direntry
+* LilyPond Extending: (lilypond-extending). How to extend LilyPond's functionality.
+@end direntry
+
@macro manualIntro
This file explains how to extend the functionality of
LilyPond version @version{}.