Military Music Orchestra(1968)

Tells about the everyday life of the military music orchestra. The most difficult thing is to play a parade concert or “defile”. A defile is when military musicians play a march in motion, without straying from a clear marching step, or from the rhythm, without violating the strict musical pattern. For a professional, this is not so difficult to do, but how did an orchestra from a generally ordinary military unit manage to do this?