I understand the concept and benefits of forming a marching band. But Northern England is different than Ulster. And this could be seen as sectarianism by many even if it's not the intention.

Well there is an element of sectarianism, but not between Irish Republicans and British Loyalists, as is the case in Ulster (as you know, there is very little sectarianism between Protestants and Catholics on the mainland), rather between the indigenous peoples of Britain and the new folk.

Had the pleasure of hosting NG and others in 2012 for the Ulster Covenant centenary celebrations.