Unless you are familiar with this dance, such as the square dance in the TV series in the name of people, you need to listen to music to know that it is Liu Rong's Dancing China, otherwise it is difficult to find the name of the square dance according to the movements. Dances with the same movements can also use different dance music. For example, the second set of double sailor dance can be accompanied by different dance music and called by different names. In particular, some foot dances can choose different dance music as long as they match the rhythm.