sign in mathematics. The formula @math{(4+5)} is an expression, so
@math{-(4+5)} is a bigger expression.
-Time signatures entered in one staff affects all other staves, but
-the key signature of one staff does @emph{not} affect other
+Time signatures entered in one staff affects all other
staves@footnote{This behavior may be changed if desired; see
-@ref{Changing defaults}, for details.}.
+@ref{Polymetric notation}, for details.}. On the other hand,
+the key signature of one staff does @emph{not} affect other
+staves.
@lilypond[quote,ragged-right,verbatim]
\relative c'' {