\book output

[Peter Mogensen]

Hi,

When using \book I can see from the docs that it is normally used to
output a set of pieces. However... I would like to use it to output
first the score and then notation for the individual instruments to hand
out. (is this a wrong application of \book ?)

However... I've found the following problems:
* breakbefore does not break unless you have a "piece" in your score header.
* You can not change "instrument" in the header on a \score by \score basis

Example:

\version "2.6.3"

\header {
  instrument = "Bogus"
}

\paper {
  raggedbottom = ##t
}

\book {
  \score {
    \header {
%      piece = "Piece one"
      instrument = "Score"
    }
    <<
      { c d e f }
    >>
  }
  \score {
    \header {
      breakbefore = ##t
%      piece = "Piece two"
      instrument = "Trumpet"
    }
    <<
      {g a b c'}
    >>
  }
}