I read an article, probably from the above web site, about an army uniform that civilians wear when performing with color guards and bands. It had no insignia or rank or only a bandsman braid. If anybody knows of the web site this would be a good time to post. If you search the web enough you'll find the correct formation, where to stand, etc when performing for military funerals. I found two sets of instructions. One was for the VFW and one for the American Legion. That might be worth locating.