[Lilypond-auto] Issue 3428 in lilypond: articulate.ly generates incorrect tempo

[lilypond]

Status: Accepted
Owner: ----
Labels: Type-Other

New issue 3428 by address@hidden: articulate.ly generates incorrect  
tempo
http://code.google.com/p/lilypond/issues/detail?id=3428

Reported by Pavel Roskin:
http://lists.gnu.org/archive/html/bug-lilypond/2013-06/msg00068.html

articulate.ly can generate wrong tempo if \tempo is not set explicitly in  
the beginning of every voice.


Let's see this example:

\version "2.16.0"
\include "articulate.ly"
\score {
  \articulate <<
    \new Voice { c4 c4-"rit." }
  >>
  \midi { \tempo 4=200 }
}

From the midi2ly output:

  \tempo 4 = 200
  \skip 4
  \tempo 4 = 36

I think following is happening. articulate.ly gets the original tempo  
right, sets it to 4=200 for the first note. But internally, it still uses  
the default 4=60. Then "rit." is interpreted as a 40% slowdown for the  
tempo, so it becomes 4=36.

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