Lilypond-book and different versions of Lilypond

[Bostjan Kuzman]

I'm writing something like a book of cello exercises, with a lot of
short music fragments and some text.
I find a combination of LaTeX and Lilypond-book a perfect tool for my
work, at least in theory. 
 
However, there are some problems in practice.
 
Using Lilypond version 2.0.1 with Fedora Core 1 Linux, I have produced
more than 200 pages of output so far.
It looks quite nice, but not perfect, as you can see from this sample:
http://razor.arnes.si/~bkuzma1/lily/romberg-fedora2-0-1.ps .
Beside the fact that the default staff size is a bit small, there are
two very bothering things:
- unacceptable collision among fingering marks and slurs
- wrong font for fingering marks in smaller staffs.
 
I knew 2.1.x versions improved Lilypond's output in several ways, but as
my files might be incompatible, I hesitated to update my Lily at first. 
Now I've installed the latest Lilypond 2.1.28 Cygwin package in Windows,
keeping the untouched 2.0.1 version running in Linux.
Of course, when I tried to process my files with the new version, there
were many problems. For instance, lilypond-book send many compatibility
warnings and even stopped in the middle of processing longer files (was
this a cygwin or a lilypond problem?). Finally I've isolated the same
sample page as before. After succesful lily-book processing, I ignored
some errors at latex processing to get
this:http://razor.arnes.si/~bkuzma1/lily/romberg-cygwin2-2-28.ps.
You can see in the new sample:
- the default staff size is bigger (and actualy looks much better),
- fingering marks have proper font in all staves (which is also good),
- some linebreaks got lost (which is bad, but can probably be easily
repaired), 
- width of fragments is totally wrong (why?),
- the collision among fingering marks and slurs isn't any better as
before,
 
The questions I have are the following:
- Was the "wrong font for fingering in small staff sizes" just a 2.0.1
bug, which is now fixed?
- Is there a way to avoid the collision among fingering marks and slurs?
Does it depend on version I use? 
- I know it is possible to tell lilypond to process .ly files as version
2.0.1. Can I also tell lilypond-book to process everything in a file as
2.0.1 version, and get the same output as before?
- Were the errors in latex processing caused because of incompatibility
of Linux and Cygwin TeTeX packages, or is something wrong with
lilypond-book?
 
If anyone wants to play around with the input file to suggest me some
other improvements, here is
http://razor.arnes.si/~bkuzma1/lily/romberg.tex .
 
With regards from Slovenia, 
Bostjan Kuzman