Choreologists are specialised creators of dance in specific styles or traditions, such as ethnic dance, early dance or baroque dance. Their work is contextualised historically and sociologically as an expression of the human group that developed it. Choreologists analyse dance from intrinsic aspects: theory, practice and epistemology of movements in itself. They also study dance from the extrinsic perspective: the social, ethnological, etnographical and sociological context in which dance is developed.