Fascinated by Varied Pitch Whistling

23 June 2011 - I love listening to John when he whistles and makes the pitch go up and down. I hear even better when I put my head on one side. Below is a picture of me listening in super power listening mode. This picture is for real. Don't you believe me? Look at the video below the picture.

                                              What pitch is that?

                                Wow - Listening to whistling is fascinating!
                                                  Look at this video below