Thank you Pashuteh Yid and welcome to the ranks of risha’im on this site.
I never knew the refrains not commonly sung and indeed they reflect the deep feelings of Yiddishkeit by the composer(s), as opposed to simply feelings of a free nation.
Btw, did you know that Chaim Nachman Bialik (oops…am I allowed to say that name on this site?) suggested that the Shir Hama’alos sung by Yossele Rosenblatt (composed by chazzan Pinchas Minkowski) and sung in virtually every home, be used as the national anthem?
I wonder if Cantoresq knows that?