I created this songbook with lilypond and like to achieve independent numbering of pages for the first analytical part of the book and the second with the scores. The first should have roman page numbers and the second part with the scores should start at page 1 with arabic page numbers. In my file structure every song is a different bookpart with custom paper variable block. Do you know some solution for my problem or how muss I change the file structurer to achieve this result?