Legal analysis: you can reflect to the relevant departments, ask them to negotiate, because dancing square dance if the noise is too high is an illegal behavior, you can ask the relevant departments to govern, in fact, the city is responsible for the management of this thing.
Legal basis: "Chinese People's **** and State Environmental Noise Pollution Prevention and Control Law" Article 45 prohibits any unit or individual in the urban areas of noise-sensitive construction of the concentration of the use of high-pitched broadcasting loudspeakers. In urban urban streets, squares, parks and other public **** place to organize entertainment, assembly and other activities, the use of audio equipment may produce interference with the surrounding living environment of excessive volume, must comply with the provisions of the local public security organs.