Actors must learn how to control pitch, volume, pace, and what else?

It is the person who interprets and represents a dramatic action based on texts, visual, sound and other stimuli, previously conceived by an author or created through individual or collective improvisations; It uses vocal, body and emotional resources, seized or intuited, in order to convey to the viewer the set of ideas and proposed dramatic actions; technical resources may be used to manipulate dolls, puppets and the like; can interpret on the image or the voice of another; rehearsing trying to combine his creativity with that of the director; It operates in places where public entertainment shows are performed and / or in other communication vehicles.

Explanation:

frederick the great, king of prussia was a general