Well "old animosities" can appear in the lyrics of various anthems - the third verse of the Star Spangled Banner (it has four verses and another was added by Oliver Wendell Holmes during the Civil War period), for example.

"Proud Edward" is not especially well liked in Wales either.

But should the referendum outcome be for independence, some of the words that currently express the hope to "be a nation again" would become redundant.

But how often redundant phrases are actually changed as opposed to simply not being used is another question. If it's not in the first verse then most people would not even be aware it was there. Flower of Scotland is probably one of those rare instances where most people who know it and sing it know the whole thing.

There are 8 verses in the Norwegian National Anthem, how many Norwegians can sing them all without looking them up?

There are three verses in the Welsh National Anthem, how many, even of those who speak Welsh fluently and every day, know the second and third verses?

There are six verses in God Save The Queen, even dropping the Marshall Wade verse, that still leaves five and I struggle with anything beyond the first verse!