Updates:
Status: Fixed
Labels: -Priority-MediumComment #10 on issue 934 by [email protected]: GUB doesn't include Japanese fonts
http://code.google.com/p/lilypond/issues/detail?id=934I just checked tyopgraphy-demo.ly, utf-8.ly and other regtests that have "utf" in the name or description text, in both HTML and PDF in version 2.16 on lilypond.org, and Japanese, Cyrillic and other accented characters and diacritics appeared to me correctly rendered.
