problems with \cueDuring

[Werner LEMBERG]

I still have problems with the current implementation of cue note
support.

First, it is a major nuisance to create the `cue' voice manually,
because it should have the same number of beats as the other voices,
and it seems to me that this information can't be extracted
automatically dependent on other voices.  What do you think of an
implicit cue voice which is created with, say,

  \new Voice \with {
    \consists Cue_engraver
    \override Cue #'length = #5.5
    ...
  }

Second, \cueDuring doesn't work correctly.  A negative direction value
has no effect (see example below); additionally, the rests aren't
shifted vertically according to the direction.

BTW, \killCues works fine.


    Werner


======================================================================

smaller = {
  \set fontSize = #-2
  \override Stem #'length = #5.5
  \override Beam #'thickness = #0.384
  \override Beam #'space-function =
    #(lambda (beam mult) (* 0.8 (Beam::space_function beam mult)))
}

\addquote clarinet \relative {
  r2 r8 c f f
}

<<
  \context Voice = cue {
    \smaller \skip 1*2
  }

  \set Score.skipBars = ##t

  \context Voice {
    \cueDuring #"clarinet" #-1 { R1 }
    g4 g2.
  }
>>

\layout {
  raggedright = ##t
}

======================================================================

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end