There are many places selling ethnic costumes in Kunming. The most convenient one is the jing xing Flower and Bird Market in the center of Kunming, which is in the area surrounded by Dongfeng West Road and Wuyi Road jing xing Road in Kunming. Nanping Pedestrian Street is just a few hundred meters west. The most expensive place in other places is the airport, which is sold on the second floor of Kunming Airport. The cheapest one is next to Kunming Nanyao Railway Station, where all ethnic handicrafts and costumes are gathered. However, the quality and price are uncertain, depending on your wisdom. I'll tell you that, again, no matter where you buy it, you can control the quality and price yourself, and you feel that it's worth it.
The song you are talking about is a toast song in the left-footed dance of the Yi people, "Auntie, you are coming to Ga". It took me a lot of effort to help you find the MP3 version, but I don't know how to give it to you. Send me your email (wjm1911@163.com) and I'll send you the song.