For those music-category-questions you better hook up with
t4yh or anyone, I don't even try to sort all that stuff out anymore.
Also it makes not much sense to pigeonhole music, that's just mainly of use for reporters or the media.
But I have one: As mentioned above, those tracks could be seen as Tekkno (dunno if I'm right, but I think 'Techno' is the overall name for the music. The original idea was to describe the hardness of the music with the number of K's in the word Tekkno which again is used for music that uses those 4 to the floor beats. If you have that mad Gabba-stuff you might wanna write it Tekkkno.)
Just say Tekkno to everything that has 4/4 beats and everything will be good.
Mhm, you seem to mean the *feeling* by saying "in my stomach", don'tya?
The acoustical stomach-thing is provided by a strong bass-sound. Let's take an example. I'll use a washing-machine here, since it's the first machine that came to my mind that rotates slow at the start and then speeds up later on.
Dull, but nevermind.
So you put your hand on the machine when it starts to sling
all the clothes around. It's slow at the beginning and you feel the power this evil machine possesses. The rotations are slow but heavy in a way and you can see the machine totter a little bit.
(I really hope we have about the same shitty washingmashines.)
But when the machine goes fast, you sometimes barely see the vibrations because they are like smaller but faster.
When you now touch it, you might notice that the vibrations aren't as heavy as before but therefor you have more of them in the same time.
And frequency behaves equal, it's high, you can't feel (physically) too much anymore, but hear it quite well.
A great part of what we sort the bassy-frequencys to, is actually felt over your bones. This is due to the fact that your real bones are bigger than the small ones you've got in your ear, so they resonate more. Bass always sounds very warm because of the low oscillations, it's a slow sound if you want. You might say now, that you can remember a track that has a non-warm but more evil bass or something, but that is just due to a high range of overtones (the ones that make it melodic), which might be distorted or somehow made 'evil'. The bass-sound itself (musically mostly everything that's under 80Hz) is always warm and round. It's the basses character.
The reason why you can really FEEL it in your stomach is, that
it vibrates slow but with pressure in the air.
This air movement reaches your body and the biggest resonance-area it hits is the torso, because of the high amount of water in the organs (-water is a better sonic-carrier than air).
Fortunately we don't have real water in our eyeballs but some slimy stuff, for we would feel bass in the eyes, uha.