I don't know if "band" would be the correct word. The thing is, the Novus Ordo Via Crucis' I have seen are always accompanied with drums and trumpets and maybe something else, I'm not sure. The music is always sad and somber, never happy of course! But I wonder if this is how it was done pre-V2 as well, or if there was no accompanying instrument at all.
What about the ones done by traditionalists? I have never seen one.