@item @code{be} is either "begin" or "end".
-@item @code{b/q} is the duration of the note for which you want
+@item @code{p/q} is the duration of the note for which you want
to add a rule. A beam is considered to have the duration of its
shortest note. Set @code{p} and @code{q} to @code{'*'} to
have this apply to any beam.
-@item @code{n/m} is the position in the time signature to which
+@item @code{n/m} is the time signature to which
this rule should apply. Set @code{n} and @code{m} to @code{'*'}
to have this apply in any time signature.
-@item @code{a/b} is the position in the bar at which the beam should end.
+@item @code{a/b} is the position in the bar at which the beam should begin/end.
@item @code{context} is optional, and it specifies the context at which
the change should be made. The default is @code{'Voice}.