\selectlanguage{french}

\beginsong{Title\\
Subtitle1\\
Subtitle2\\
Subtitle3\\
Subtitle4\\
Subtitle5}[
  by={
        Author1,
        Author2  },
  album={Album},
  copyright={Copyright},
  cov={Cover},
  foo={Foo},
]

\cover

\textnote{Comment}
\musicnote{GuitarComment}
\image{Image}
\lilypond{Lilypond}

\endsong