Yes it is. If I do a bend from the 4th to a 5th, it is going to be more "soulful" than a bend from the 2nd to a 3rd. Music is all physics and wavelengths and crap.
I would really love to hear the justification for a statement like this. Ehra's right, not every will agree on what's soulful. For example, I'd likely find that bending a note a whole step or more, as opposed to the half step you mentioned, would probably sound more soulful to my ears. Music is not all physics and wavelengths and crap. Technically, yes, those things make up the what your ears and brain translate into music, but no. To say that's all it is is doing it a major disservice.
In the first place, a bend from the 4th to the 5th
is a whole step, so we are actually in agreement here.
When we are comparing which of two players is better/more soulful/more skilled, here's my philosophy: there is an objective answer. Now, here's the caveat: it is impossible to know unless you are somehow omniscient.
I like to think of it in terms of statistics. In the real world, we don't know the true parameters of a population, but we can make educated guesses based on limited knowledge. Sometimes we'll be right, sometimes we'll be wrong.
For example, let's say that there is some omniscient genie. He knows the who is the better player between David Gilmour and John Petrucci (for the example's sake, let's say the truly better player is JP). But we humans don't actually know this. Instead, we compare them using various "tests" we concoct. One person might say, "JP is more technical," someeone else will say "DG is more soulful" and they'll butt heads, because, ultimately, these two indviduals don't know the who-is-better formula and how much technicality or soul play into that forumula.
Everybody has convictions on who is "better". But obviously, two contradicting beliefs can't both be right. Two different people have two different "data sets" that they are using to come to their conclusions. As we grow in knowledge and experience, our "data set" becomes larger and we slowly become more certain of our convictions (although we'll never have complete knowledge like the genie).
Yeah so that's my view. Obviously I am not the genie and neither is anybody else. But I believe that there is an objective answer somewhere in the clouds that we'll never know, as opposed to everything just being subjective.