Starting translation in a new language

At top of the source directory, do


or (if you want to install your self-compiled LilyPond locally)

./ --prefix=$HOME

If you want to compile LilyPond – which is almost required to build the documentation, but is not required to do translation only – fix all dependencies and rerun ./configure (with the same options as for

Then cd into Documentation/ and run


where MY-LANGUAGE is the ISO 639 language code.

Finally, add a language definition for your language in python/, Documentation/lilypond-lang.init and Documentation/webserver/ Add this language definition and the corresponding section in Documentation/lilypond.init and scripts/build/

LilyPond Contributor’s Guide v2.25.18 (development-branch).