A quick question I couldn't find any reference to in the BR. Are the Last Post and Sunset tunes that you should always salute regardless of what's going on, like the National Anthem? Or does one only salute because of what's going on, i.e. the present arms before the two-minutes silence, or the colours coming down? In other words, if you heard it as a member of the audience at a concert like the Edinburgh Military Tattoo, with no silence and no flags, do you salute?