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Re: \alternative error...


From: Pierre Perol-Schneider
Subject: Re: \alternative error...
Date: Fri, 21 Nov 2014 17:52:28 +0100

Hi Marcos,

2014-11-21 17:02 GMT+01:00 Marcos Press <address@hidden>:
 
Can someone tell why the small fragment in the attached .ly file, gives these error?

You have to put the barlines at the right places ; the following code won't give you any error/warning :

\version "2.18.2"

\relative c'{
  \time 2/4
  \repeat unfold 2 { r16 fis g a bes a8 fis16 | }
  \alternative {
   { g16 fis g a bes a8 fis16 | }
   { g16 fis g a bes a8 e16 | }
  }
  \repeat unfold 3 {  g16 fis g a bes a8 e16 | }
}


but won't probably give you what you expected...
 
Another curiosity is, if in the .ly file I write in diferent lines the { } an the music expresions of the \repeat, like these:

\repeat unfold 2 {
 c c
}

the file compiles with these warning and the pdf voltas results in one less as the warning said:

In fact, the \alternative code needs to be preceeded by \repeat volta (and not \repeat unfold) to be expressed ; so here it goes :

\version "2.18.2"

\relative c'{
  \time 2/4
  \repeat volta 2 { r16 fis g a bes a8 fis16 | }
  \alternative {
    { g16 fis g a bes a8 fis16 | }
    { g16 fis g a bes a8 e16 | }
  }
  \repeat unfold 3 { g16 fis g a bes a8 e16 | }
}


HTH;
Pierre



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