There's more roughness and expressiveness than there is words 
She's singing about the way the second state treated serfs, particularly about the frequent raping and kindnapping of women while the men were away.
I don't understand much of the Belarussian part, but the guy sings that if he hadn't been absent for 3 days and nights his master wouldn't have taken his wife.

She's singing about the way the second state treated serfs, particularly about the frequent raping and kindnapping of women while the men were away.
I don't understand much of the Belarussian part, but the guy sings that if he hadn't been absent for 3 days and nights his master wouldn't have taken his wife.