Cor, frequencies, this is getting deep and meaninful now! You'll have the words "Chakra" and "Zen" or whatever being bandied around!
Joking aside though, you're right Carp are so much more attuned to their environment than we will ever be. We can detect smells in the air around us for example, Carp can smell (Read taste) substances hundreds/thousands of times more diluted amongst all of the other signals they are surrounded by, and process whether they present a food source or not.
I'm totally with you about location mate, it is the single most important aspect of your fishing, whether we are talking pinpoint location (A hot area within a swim) or the bigger picture, as in knowing where the fish are likely to be for any given set of conditions.
I fish a 400+ acre lake in winter for Pike, and despite having what I am fairly sure is the best choice of baits and methods I can use, if I didn't have at least a decent idea where the fish are going to be, I would be totally wasting my time.
I'm in the situation where I can't always be on the fish (Or at least on the bulk of them) on my current syndicate, so whatever I can do to increase the chance of a Carp finding my bait and wanting to eat it, I have to do that.
An attractive bait (In my opinion) is not one that is reeking of Strawberry/Pineapple/Coconut or whatever, but one that is giving off signals that say "Eat me, I'm safe and good for you" to our old friend the Cypry.
I have seen Carp literally doing loop the loops in a cloud of liquids that I have poured into an area, looking for solid edible food items. (Note: This is a safe area that the Carp are relaxed in)
I have seen these fish on another occasion vacate the same area (In their own time, not bolting away) when about 1/4 kilo of broken up freezer baits were introduced. They didn't return for 2 days and the baits were all eaten by Tench.
As a final observation, talking beds of bait here. I really do think that the area of water surrounding whatever bait you introduce, goes through changes the longer that bait is there, and the Carp know it.