well I guess part of it is the musiciany part of my brain, that appreciates the technical skill. the scales? For me, the movie analogy again applies: I don't like things that I can predict, ie the key change in every Celine Dion ballad, or for that matter, every sappy R&B ballad, or plots in movies. I like foreign movies, cause probably there is a cultural barrier preventing me from predicting the plot, so I am a little more on the edge of my seat. The same thing applies with jazz like that, wacky scales=unpredictability.

the emotional part is that it is FAST! I am pretty sure that I have attention deficit disorder, at the very least when it applies to listening to music. So it's not only the skill I am appreciating, it is the energy; part of the energy is because these are live recordings too.

Ron Sexsmith indeed rules.