\version "2.13.1"
\pointAndClickOff

aa = \relative c'' {
  \time 3/4 \key c \minor \clef "bass"
  \tempo "Adagio"
  c,4(\ff\< g8)_"test" g8-.-| a4 |
  \time 4/4 \key as \minor \clef "tenor"
  \tempo "Andante" 4=35 
  c4(\ff\< g8)_"test" g8-.-| a2 |
}
\addQuote #"a" \aa
bb = \relative c'' {
  \time 3/4 \key c \minor 
  \mark "Quoted part:"
  \quoteDuring #"a" { s2. | s1 }
  \mark "Manually written:"
  c4(\ff\< g8)_"test" g8-.-| a2 |
} 

\new Score << 
  \new Staff {\aa}
  \new Staff {\bb}
>>


% The following score should contain everything, as if \time, \key, \clef, \tempo, -., -|, \ff, etc were written directly in \bb
\new Score << 
  \new Staff {\bb}
>>