lilypond-book/pdflatex: LaTeX Error: Environment lilypond undefined.

[Dave Plater]

Hi, I maintain lilypond in openSUSE and while I'm good at building and 
packaging I'm far from competent as a lilypond user. A user has filed a 
bug with the title listed in this messages subject. Could somebody 
please have a quick look and maybe offer a hint as to what is causing 
it. See :
https://bugzilla.opensuse.org/show_bug.cgi?id=964357
Thanks
Dave Plater