Abstract: The present invention relates to an apparatus of providing a user interface for playing and editing moving pictures (i.e., video) and the method thereof, the user interface being capable of maximizing learning and practice effects by providing an interface which allows inserting of cue-points in the video on the basis of beats in music or periodic signals equivalent thereto and visibly displaying cue-points, recording of one's practice clips while playing the video so as to allow video playback and practice at the same time, and the instantaneous comparison/analysis of the recorded practice clips and reference video.