This command changes the pitch median and the pitch variation of each selected Sound.
New pitch median (Hz): the desired median pitch of the new Sound. A value of 0 will leave the median pitch unchanged.
Pitch variation (%): the scaling percentage of the pitch contour around the new pitch median. A value of 100 will leave the pitch variation unchanged, 0 monotonizes the new sound to the new pitch median, 200 doubles the pitch contour, and negative values do the same but inverting the pitch contour.
The resulting new Sound(s) will appear selected in the list of objects.
