Select one PDF to generate from .ly with multiple books

[Hayden Muhl]

Let's say I have a .ly file of a piano trio. The file has three book sections, one for each of the instruments, so when I compile my .ly file I get three pdf files, a piano part, a violin part and a cello part. Something like the following.

\book {

  % piano

}

\book {

  % violin

}

\book {

  % cello

}

Is there a way to tell lilypond to only generate the cello part from this file? I understand that there are other solutions to this, like using multiple files and include statements. I'm just curious if this particular functionality exists.

- Hayden