sentences:  Along with that, slow-dancing was the primary method of dancing at the time.However; the rise of Rock and Roll music initially made it hard for people to dance when it was popularized in the early 1950s, however people quickly adapted to it and started dancing at higher speeds almost coinciding the rise of DJ-based dancefloors.Live bands have quickly been displaced by DJ-based dancefloors as the DJ stands took up less space than bandstands and that it played recorded music.