I've taken the Christmas Carol's "Angels we have heard on high" and "Gdy się Chrystus rodzi" (a Polish Christmas Carol which translates as "When Christ is being born").  I wrote two variations on this Polish Carol last year and you can find them here to become more familiar (if you want): There was some confusion in that thread about which Carol I was actually working on (LoL) owing to the fact that both of these Carol's prominently feature the Latin lyrics "Gloria in excelsis Deo".  But t