+@item doctitle
+(Only for Texinfo output.) This option works similarly to
+@code{texidoc} option: if @command{lilypond} is called with the
+@option{--header=@/doctitle} option, and the file to be processed is
+called @file{foo@/.ly} and contains a @code{doctitle} field in the
+@code{\header}, it creates a file @file{foo@/.doctitle}. When
+@code{doctitle} option is used, the contents of @file{foo@/.doctitle},
+which should be a single line of @var{text}, is inserted in the
+Texinfo document as @code{@@lydoctitle @var{text}}.
+@code{@@lydoctitle} should be a macro defined in the Texinfo document.
+The same remark about @code{texidoc} processing with localized
+languages also applies to @code{doctitle}.
+