Re: change Pitch, strange behavior

[Alexander Kobel]

Stefan Thomas wrote:
> Dear Alexander,
> look at the attached jpg-file. In my opinion the quarter-rests look strange!

Ugh. Okay, admitted.
But... it's nothing to do with \changePitch. Remove this command, and 
the result looks the same.
Worse, if you add spacer rests in the second voice, no rests will be 
drawn at all; seems like a variant of 
http://code.google.com/p/lilypond/issues/detail?id=261.

Let's face it, \partcombine sucks. I quit using it long ago, since the 
trouble compared to writing a simple << {} {} >> and spacer rests in the 
second part is just not worth it, IMHO.
Alas, it'd be great if it worked, though.


Valentin, if you did not gave up on \partcombine yet, feel free to add 
another bug: \partcombine (also) sucks if the user tries to force it to 
deal with music extracts of different lengths.


Stefan, in your case, however, there's an easy workaround: append "s s" 
onto "unten", and the \changePitch result will be enlarged by the two 
rests. For some reason I did not investigate further, appending "r r" 
does not work, but IIRC changePitch intentionally ignores rests in one 
argument - after all, it should replace pitches, and rests don't have any.


Cheers,
Alexander

\include "changePitch.ily"

oben     = { e''' 4. g'''  gis'''4 g'''4.  r r4 | }
untenI   = { g''4.   bes'' c'''4   es'''4. }
untenII  = { g''4.   bes'' c'''4   es'''4. r r4 | }
untenIII = { g''4.   bes'' c'''4   es'''4. s s4 | }

\new Staff { R1 \partcombine \oben \untenI \bar "||"
             R1 \partcombine \oben { \changePitch \oben \untenI } }
\new Staff { R1 \partcombine \oben \untenII \bar "||"
             R1 \partcombine \oben { \changePitch \oben \untenII } }
\new Staff { R1 \partcombine \oben \untenIII \bar "||"
             R1 \partcombine \oben { \changePitch \oben \untenIII } }