What setup for a Pedagogy Book?

[Henry Flurry]

I am getting ready to embard on typesetting a pedagogy book containing mostly large print music but also some text.  The book is fairly big for a music book, probably on the order of 150+ pages.

I have used embedded Lilypond in OpenOffice documents (OOoLilyPond (OLy) - Music notation in OpenOffice.org), and found it OK for that project, which had more text than music.

I was thinking of exploring the possibility of LaTex & Lilypond.  

Has anybody out there done this kind of combo?

It is important that I have the ability to define styles for the different types of music, staff sizes, text, page layout, etc., so I can change it easily for the whole document.  Would this be possible?

Should I write straight in LaTex, or does it make sense to explore other structured formats (e.g., DocBook) ?

Thanks much!

Henry