Click "Square Dance" in Baidu search - video, you can appear many video sites of square dance, download the video you need, and then use the software comes with a conversion tool, converted into MP3 Audio files can be (in order to ensure the sound quality of MP3, it is best to choose after editing, with better audio files to replace the video in the video of the live recording of the square dance video download).
Recommend that you use the "Weitang FLV video download software" this free download software. Most of the video sites play FLV, F4V and MP4 format video files, "Weitang" can download more than 300 video sites of the above format video files, and comes with a format conversion tool, can be converted to MP3 audio files, can fully meet the needs of the usual dance.