Sinawi, sometimes spelled shinawi, is a traditional form of Korean music. It is performed improvisationally by a musical ensemble, and traditionally accompanies the rites of Korean shamanism. The style first emerged in the Chungcheong and Jeolla provinces, but is now widespread. The traditional sinawi ensemble followed the principle of sam-hyeon-yuk-gak (三絃六角), with two flutes, a haegeum, a daegeum, a janggu hourglass-drum, and a large buk drum. However, today other traditional Korean instruments such as the gayageum and geomungo are also often included.

I've thought you meant the heavy metal rock music band in South Korea as soon as I saw your question. (http://en.wikipedia.org/wiki/Sinawe if you're interested in it as well) Considering that it's called 神房曲 or 心房曲, I presume that they play it as a ceremony or performance these days.

i'm sorry baby.