Don't break lines

[Marco Caliari]

Hi.

I'm writing a music exercises booklet with latex and lilypond-book. Each 
page has the following aspect:

\section{...}
\subsection{...}
\begin[20pt,noquote]{lilypond}
...
\end{lilypond}
\subsection{...}
\begin[20pt,noquote]{lilypond}
...
\end{lilypond}
[other 2 or 3 subsections]
\pagebreak

It may occour that the lines of the last lilypond block break across 2 
pages. So I have to insert, e.g., \paper{interscoreline=-5.0\mm}, trying 
different values, into some lilypond block in order to keep all the 
exercises of a section in exactly one page.

Would it possible to force lilypond, or latex, to keep each section in one 
page, automatically detecting the right interscoreline into the lilypond 
blocks?

 -- 
Marco