simply insert the characters directly into the input file and save
it with utf-8 encoding. See @ref{Text encoding}, for more info.
+FIXME: quotes.
+
@lilypond[quote,ragged-right,fragment,verbatim]
\relative { e4 f e d e f e2 }
\addlyrics { He said: “Let my peo ple goâ€\9d. }