Basically, the project I'm working on is a bilingual book, containing both text and music, with one language on even pages and the other language on odd pages. Since some of the music will span multiple pages, and there's a sort of pre-compiler that determines the layout of the music, I cannot simply use page breaks and alternate languages in the source file.
I do have a solution, but it's very ugly. It would essentially involve separate source files for the two languages, where I command the margins to print 2\thepage and 2\thepage+1 in the two files, and then interleave them at the end.
Does anybody know of a LaTeX package or macro that would do this more elegantly?
In case it matters, I'm using gregorio and lilypond-book for the music, and lualatex for the final compilation.
xrpackage (to mark the pages to synchronize) andpdfpagespackage (to extract pages from each document). – Paul Gaborit Apr 29 '15 at 00:07