Help with positioning coda glyph

[Tim McNamara]

I am having problems getting LilyPond to properly position coda  
glyphs.  I've included the code to see if others reproduce it.  The  
first coda glyph should be at the end of bar 28 but LilyPond insists  
on putting it at the end of bar 29.  The /break command seems to be  
involved (is this a bug, BTW?).  Also, LilyPond won't put the coda  
glyph at the beginning of bar 31.  At least not using the code  
provided in the documentation.


\version "2.12.2"

#(ly:set-option 'delete-intermediate-files #t)

\paper {
    indent = 0.0
    ragged-last = ##f

}

\header {
  title = "Recycling Day"
  subtitle = "Concert Pitch"
  composer = "McNamara"
  meter = "Up-tempo Swing or Bebop"
  copyright = "Cunamara Music"
}

harmonies = \chordmode {

% 1
c1:6
b1:7
bes1:6
a1:7

% 5
a1:m7
d1:7
g1:maj7
g1:maj7

% 9
g1:m7
c1:7
f1:maj7
a1:7

% 13
d1:m7
g1:7
c1:6
b1:7

% 17
bes1:6
a1:7
a1:m7
d1:7

% 21
g1:maj7
g1:maj7
g1:m7
c1:7

% 25
f1:maj7
a1:7
d1:m7
g1:7

% 29
c1:maj7
d2:m7 g2:7
c1:6
b1:7

% 33
bes1:6
a1:7
aes1:6
g1:7

% 37
c1:6

}

melody = \relative c' {
\override Staff.TimeSignature #'style = #'()
\time 4/4
\clef treble
\key c \major

\bar "|:"

% 1
g'2 \mark \markup { \musicglyph #"scripts.segno" }  \times 2/3  {g4  
a4 g4 }
ees1
f2 \times 2/3 { f4 g4 f4 }
cis1 \break

% 5
e2 \times 2/3 { e4 f4 e4 }
d2. c8 b8
g'1~
g1 \break

% 9
\times 2/3 { a4 bes4 a4 } bes4 a4
c8 c8 c2 r4
\times 2/3 { a4 bes4 a4 } bes4 a4
cis,2. \times 2/3 { e8 f8 g8 } \break

% 13
\times 2/3 {a4 g4 a4 } a4 g4
c2. e,4
g2 \times 2/3  {g4 a4 g4 }
ees1 \break

% 17
f2 \times 2/3 { f4 g4 f4 }
cis1
e2 \times 2/3 { e4 f4 e4 }
d2. c8 b8 \break

% 21
g'1~
g1
\times 2/3 { a4 bes4 a4 } bes4 a4
c8 c8 c2 r4 \break

% 25
\times 2/3 { a4 bes4 a4 } bes4 a4
cis,2. \times 2/3 { e8 f8 g8 }
\times 2/3 {a4 g4 a4 } a4 g4
c2. e,4\mark \markup { \musicglyph #"scripts.coda" }   \break

% 29
c1
r1_\markup{\italic"Last Time D.C. al coda"} \bar ":|"
\times 2/3 { g'4 \mark \markup { \musicglyph #"scripts.coda" } a4  
g4 } e2
\times 2/3 {fis4 g4 fis4 } dis2 \break

% 33
\times 2/3 { f4 g4 f4 } d2
\times 2/3 { e4 f4 e4 } cis2
\times 2/3 { ees4 f4 ees4 } c2
\times 2/3 { d4 e4 d4 } b4 g'8 f8

% 37
 e8 d8 c'4 r2

}

\score {
  <<

    \new ChordNames {
      \set chordChanges = ##t
      \harmonies
    }
    \new Staff \melody
  >>

}