What is the name of the bulgarian folklore song? "Vav pregradkite ti mamro rasnah bez da znaq.............." Who is the name?

Thank you very much for replying! Would you translate lyric? Thank you very much!　Please give me lyric in English. The place which you post to the comment field of my(hagakurekakugo's) profile, please.
Best Regards

Will try to translate in English. Where to post to?

I am sorry, since previous URL was entered a space between "com" and "/watch". In case it pastes, after deletes a space, please.

Hi! I am a Japanese and the enthusiastic fan of the beautiful and mystic Bulgarian voice(Chorus). I have about ten CDs of Bulgarian voice.
Thank you for Uploading the concert of Bulgarian voice!　 I saw for the first time. It is very interesting.
The song of voice of very interesting Bulgaria is in the URL here of YouTube.
http://www.youtube.com/watch?v=Vcb6BD0-t88&
It is called "Atomic Bird" which Kanno Yoko of a Japanese composer composed. Although Bulgarian voice is used in this song, since the lyric does not appear in a words card, I do not know with what it has sung. Would you teach me the meaning of lyric, please?
Best Regards