Updates:
Status: Verified
Comment #8 on issue 2241 by [email protected]: Book only puts copyright
information on the first page
http://code.google.com/p/lilypond/issues/detail?id=2241
I think your 1st comment is exact (copyright and tagline from the score's header is ignored)
your example now compiles as expected and also omitting the pagebreaks it produces the tagline and copyright line in each bookpart!
