Really, really aching to post my answer. Do I really have to wait 12 hours?
Sorry, I was in bed.
Hmmm.... after reading the second clue, I'm not sure that my answer is right anymore, but here it is:
"Bóg się rodzi", or "God is born", unofficial anthem of the former Polish empire, and musical theme for the Polish civilization in BNW.
BTW, does that mean it's my turn to compose a new riddle and provide the first clue?