Consistency of engraving of hairpin

[Nick Payne]

See below. In bar 1, where the starting point of the hairpin in the top 
voice is a rest, the hairpin starts at a point midway between that rest 
and the following note. If the hairpin starts on a note, or if the 
hairpin is move to another voice consisting of only spacer rests, then 
the behaviour is different.

The difference in behaviour is the same if there is only a single voice, 
though then it doesn't make sense to start the hairpin on the rest.

\version "2.17.96"

\relative c'' {
  \time 2/4
  <<
    {
      r16\> a a a a a a a\!
      r16 a a a a a a a
      a16\> a a a a a a a\!
    }
    \\
    {
      a,2
      a
      a
    }
    \\
    {
      s2
      s16\> s s s s s s s\!
      s2
    }
  >>
}

test.png
Description: PNG image