Every nations in the world have their own folk music, even the russians do. Did you attempt to use this? http://www.google.com/search?hl=en&q=the+russian+folk+music&btnG=Search Note, it's a good start to find whatever you need.

我可以帮助你下载俄罗斯的民间音乐创作。

I suggest listening to "Ivan Kupala". It is Russian variant of famous "Deep Forest" and is easier to listen for foreigners than original folk bands from Russian province.

If you have access to Youtube.com, just input "Russian folk song" in search field. There are a lot of Russian songs. E.g. Kalinka: http://www.youtube.com/watch?v=09Rf2KqA7a4&feature=related If there are some limitations for your country, try Rutube.ru (but it´s available only in Russian). So here is a link for the "Russian folk song" search request: http://rutube.ru/search.html?search=%D2%D5%D3%D3%CB%C1%D1+%CE%C1%D2%CF%C4%CE%C1%D1+%D0%C5%D3%CE%D1&x=0&y=0 Navigation is really simple even if you don´t know Russian. An example: http://rutube.ru/tracks/1462455.html?v=641ce63a16f9f512441ec253dc333426 Good luck.

look at that: http://www.barynya.com/mp3/index.stm there are many famous russian folk songs