Tom and Jerry

I was watching Tom and Jerry the other day, (Hanna-Barbera era - mid1950's), and noticed how much added value there is.  I first shut my eyes and listened to only the effects while blocking out the orchestration.  Without the visuals, it was spliced sounds mashed together.  A spring sound followed by the infamous slide whistle ending with a cymbal crash.  Also, without the visual it becomes easier to hear how the sound was most likely created.  When putting the TV on mute and watching without sound, it's less exciting.  In the animation, there are added lines around the character indicating pain, or sudden movements, along with shaking film slides, but without the added sound a lot of the effectiveness is lost.  Most of the sounds are also direct, whatever effects are made are always shown.  In the rare chance that the source if off screen, there is added animation to show where the source is located.  For example, a dog is barking off screen so 5 small lines are flashing synchronized to the bark in the area where the dog would be.