My google-fu fails me on this one. I absolutely love “Little Big Man” with Dustin Hoffman. And there is an instrumental piece consisting mainly of piccolo and drums (I think there are drums) that is sort of the theme when the U.S. Calvary show up. It is a haunting little ditty that stays in my head for days after watching the movie. There’s a heap of rainy-gratitude to the person who can ID this little tune and tell me where to get it from.