Puzzled about r1 issue in 3/4 time

[Michael Wagner]

I am seeing some behavior I don’t understand. I have ended the music for “Silver Bells” into lilypond, and I am seeing a puzzling error.

The song is in 3/4 time, but the rest in measure 33 seems to betaking 4 beats - I get a bar check failed and there are one two rests in measure 34, and an extra measure is inserted at the end.

What am I doing wrong? 

The offending r1 is on the 3rd line of the first branch of the alternative below - and if I change that r1 to “r4 r4 r4”,  or to “r2.”, the issue goes away.

\version "2.18.2"

\include "predefined-guitar-fretboards.ly"

\language "english"

\header {

  title = "Silver Bells"

  composer  = \markup \column \center-align {

    "Music and Words by"

    "JAY LIVINGSTON and"

    "RAY EVANS"

  }

  arranger = ""

  poet = ""

}

\paper {

  #(set-paper-size "letter")

}

global = {

  \autoBeamOff

  \numericTimeSignature

  \time 3/4

  \key bf  \major

  \tempo "Moderately and Tenderly"

}

melody = \relative c' 

{

   \global

    \partial 4 { g'8 bf8 }

    \repeat volta 2 

    {

      f4 d4 bf'8 g8 |

      f4 d4 d'8 c8 |

      bf4 g4 g4 |

      \break

      

      g2 c8 bf 8 |

      a4 f4 e4 |

      ef?4 f4. ef8 |

      ef4 d2~ |

      \break

      

      d4 r4 bf'8 g8 |

      f4 d4 bf'8 g8 |

      f4 d4 d'8 c8 |

      bf4 g4 g4 |

      \break

      

      g2 c8 bf8 |

      a4 f4 e4 |

      ef?4 f4 c'4 |

      bf2.~ |

      \break

      

      bf2. |

      d,8 ef8 f2~ |

      f2. |

      g8 a8 bf2~ |

      \break

      

      bf2. |

      a4 a4 bf4 |

      c2 bf8 a8 | 

      bf4 f2~ |

      \break

      

      f2 r4 |

      d8 ef8 f2~ |  

      f2. |

      g8 a8 bf2~ |

      \break

      

      bf2. |

      a4 a4 bf4 |

      c4 bf4 a4 |

      \break

      

    }

    \alternative {

      {

        bf2.~ |

        bf2 r4 |

        r1  |

        r4 r4 bf8 g8 |

        \break

      }

      {

        bf2.~ |

        bf2. |

        r1   |

        r1  \bar "|."

      }

    }  

   

    \tuplet 3/2 {} 

 }

first_verse = \lyricmode {

  Ci -- ty side -- walks, bus -- y side -- walks dressed in hol -- i -- day style.

  In the air there's a  feel -- ing of Christ -- mas. __

  Child -- ren laugh -- ing, peo -- ple pass -- ing,

  meet -- ing smile af -- ter smile,

  And on ev -- 'ry street cor -- ner you hear: __

  Sil -- ver bells, __ sil -- ver bells, __

  It's Christ -- mas time in the city -- y.

  Ring -- a -- ling, __hear them ring, __

  Soon it will be Christ -- mas day. __ 

  Strings of 

  day. __

}

second_verse = \lyricmode {

  " " " " street lights, ev -- en stop lights blink red and green,

  As the shop -- pers rush home with their treas -- ures. __

  Hear the snow crunch, see the kids bunch,

  this is Santa's big scene,

  And a -- bove all this bus -- tle you hear:

  

}

transposed = \transpose c' c { \clef bass \melody } 

\score {

  <<

   %\new Staff { \melody }

   \new Staff \with { instrumentName = "Basoon "} { \transposed }

    \addlyrics { \first_verse }

    \addlyrics { \second_verse }

  >>

  \layout { }

}