In the field of music, take the movement as an example. Launched in late 2017 under the short video air, pre-A round financing has been completed. In order to further improve the content value of music short video, from the music field into the short video movement is the free interactive play of multi-grid music video tracking, in short, short video consists of multiple grids, the content within each grid can be produced independently. From the music KOL point of view, the advantage of this play is that it can fit seamlessly into the band form, can be more than one person at the same time to produce a short video, or one person can copy more than one person to produce a short video.