Cont. Cats Listening to Music?

Earlier I asked if cats (among whatever other animals) listen to music, I believe I worded it different, but to clarify, I meant to ask if cats listen to music or just hear it..

I have seen cats eyes on the television and I would almost swear they are watching the figures in the TV move about and associating the sound that comes from the TV with the objects moving. Obviously I do not know this for sure as it's something only the cat truly knows if she herself is watching the figures, no test has been created or discovered to truly know if the cat is watching the television, not to say the cat necessarily is following a story or understanding the human storyline presented on the television. So I think the cat is watching the television (in my personal experience I touched on above), and not just looking at the TV.

CHECK OUT THESE LINKS< EACH WORD IS DIFFERENT LINK (worth the watching)

Cats-- watching-- Tv--

So my question-- is the cat listening to the music, following the music (whether understood in the cats own way or not), just as the cat follows what's on the TV?

I agree that animals react to sounds, that is the function of the ear, to help instincts... It is in most if not all animals instincts to react to a sound in whatever way.

I also agree that the cat would sit when something is said, that has been previously said when a treat is presented and only given once the cat sits. I know this because I have done this with my cat-- I will pull a treat out while she is near me and put it to her nose... pull it back and say "sit....sit" and she will take a few seconds, back up a few kitty steps, and shuffle her butt to the ground with the tip of her tail pointing to the ceiling, finally sitting. Then she gets her treat.

MY Question is aimed toward Amy, to further understand what she means in the beginning of her first paragraph from "Animalistic listening." When people talk or make sounds I do agree the cat will/can respond, but what is the correlation between the cat watching TV and the cat responding to a demand of the one holding the treat, for the treat? (anyone is welcome to add thoughts to this, not just Amy)