Let me give you a little test to see how observant you really are. DO NOT PROCEED UNTIL YOU HAVE SEEN THE VIDEO! DO NOT PROCEED UNTIL YOU HAVE SEEN THE VIDEO! DO NOT PROCEED UNTIL YOU HAVE SEEN THE VIDEO! DO NOT PROCEED UNTIL YOU HAVE SEEN THE VIDEO! At what point in the video did you realize something was wrong.. 1. When he played his first note (:20)- give yourself 10 points 2. When he switched horns (:50)- give yourself 9 points 3. When he used the wrong fingering on the trumpet on his right (1:09)- give yourself…