Hi Mario,
Sorry for this late reply, I don't know if you managed to find a
solution to your problem.
Many, many aspects of the score layout and appearance can be
controlled directly via the lilypond syntax and/or the scheme
scripting API. I am not a lilypond guru but since no one seems to
have tackled this problem, here's my stub at it (I have not checked
whether you asked on lilypond mailing list).
I attach the musette file, slightly edited. Note that I run a 2.4.2
version of lilpond. I had to run convert-ly on the original.
Here is a list of changes I did to the file in order to make it output
larger staff on a landscape a4:
1. global staff size. It could be anything, I set it to 26 but you
could probably go much higher (I did try 48 and had about 2 measures
per page); this is the Feta font size so everything will be adjusted
proportianlly. This is probably the place where you can play with the
size at will.
#(set-global-staff-size 26)
2. I set manual page breaks (\pageBreak markup) but I just added them
where \break (as for line-break) markup was. You can use it at
will and you don't need the \break. \pageBreak implies a
line-break.
3. I changed linewidth to 24cm
\layout{ linewidth = 24.0 \cm }
4. And lastly, added \paper block
\paper {
#(set-paper-size "a4" 'landscape)
}
Many of the score elements can be controlled independently, though.
noteheads, line spacing, stem thinkness, whatver you can think of, can
be controlled it's just a matter of getting used to the system.
Hope this helps.
./MiS