Currently, it's not a good idea to include SVG files generated by
LilyPond in web pages on the Internet, because you have to make
sure OTF
fonts -- from the LilyPond version used to generate the SVG -- are
installed on the (e.g. in ~/.fonts). SVG files generated by LilyPond
are rather to be processed on a server or a machine building a web
site,
where SVGs are cnoverted to PNGs -- that's what we do on lilypond.org
for language-dependent pictures, see
http://lilypond.org/web/switch/howto for example.