Cusco is a dialect of the Quechua language. It is one of the largest dialects, along with Ayacucho Quechua. It is spoken throughout Peru, Bolivia, and Argentina. Quechua (Standard Quechua, Runasimi Language of People) is a Native American language of South America. ... Ayacucho is one dialect of the Quechua language. ...
Quechua has often been grouped with Aymara as a larger Quechumaran linguistic stock, largely because about a third of its vocabulary is shared with Aymara.
Quechua I or Waywash is spoken in Peru's central highlands.
None of the plosives or fricatives are voiced; voicing is not phonemic in the Quechua native vocabulary.