The property @code{measurePosition} contains a rational number
indicating how much of the measure has passed at this point. Note
that this is set to a negative number by the @code{\partial} command:
-i.e., @code{\partial 4} is internally translated to @code{-4}, meaning
+i.e., @code{\partial 4} is internally translated to @w{@code{-4}}, meaning
@qq{there is a quarter note left in the measure.}
@seealso
of beaming-rules.
At this time the only available value of rule-type is
-@code{#'end} for beam ending.
+@code{'end} for beam ending.
Beaming-rules is a scheme alist (or list of pairs) that indicates the
beam type and the grouping to be applied to beams containing notes with