-The @code{@var{musicexpr}} is inverted interval-by-interval,
-and then transposed so that @code{@var{from-pitch}} is mapped
-to @code{@var{to-pitch}}.
+The @code{@var{musicexpr}} is inverted interval-by-interval around
+@code{@var{around-pitch}}, and then transposed so that
+@code{@var{around-pitch}} is mapped to @code{@var{to-pitch}}.