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r4
\override Glissando #'style = #'zigzag
\override Glissando #'color = #'green
a'2.\glissando\< \bar "'" 
g'1~\> \bar "'" 
\tieHalfDashed g'2~ \hideNotes g'2~   \bar "'" 
\tieHalfDashed g'2~   g'2~ \unHideNotes   \bar "'" 
bes1 \bar "'" 
r1 \bar "'" 

%\override Staff.BarLine #'color = #red
< des fis,>1  \bar "||"
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