Define social protest and political motives

Social protest is usually executed by the general population. It is intended to create awareness of an issues or several issues in order to increase support and further change. Political motive is what drives politicians and leaders to instill changes or take positions on subjects in order to further their power.

pitch- the definition of pitch is as follows:

"the quality of a sound governed by the rate of vibrations producing it; the degree of highness or lowness of a tone."