Re: Make defining new contexts simpler with better \alias functionality

[Paul Morris]

I thought of another limit case: trying to create more than one custom
context inside a single score block, as follows, will result in more than
one typeset score:

\score {
  <<
    \new myVoice { c' d' e' f' }
    \new myOtherVoice { e' f' g' a' }
  >>

  \accept-like Voice myVoice \layout {
    \context {
      \Voice
      \name myVoice
      \alias Voice
      \override NoteHead.color = #blue
    }
  }
  \accept-like Voice myOtherVoice \layout {
    \context {
      \Voice
      \name myOtherVoice
      \alias Voice
      \override NoteHead.color = #green
    }
  }
}


One way around this would be to edit the function to work as follows,
accepting an alist as the first argument.  

\score {
  <<
    \new myVoice { c' d' e' f' }
    \new myOtherVoice { e' f' g' a' }
  >>

  \accept-like #'((Voice . myVoice) (Voice . myOtherVoice)) \layout {
    \context {
      \Voice
      \name myVoice
      \alias Voice
      \override NoteHead.color = #blue
    }
    \context {
      \Voice
      \name myOtherVoice
      \alias Voice
      \override NoteHead.color = #green
    }
  }
}

That's less elegant as the user has to switch into scheme to supply the
first argument.

-Paul



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