Jazz is a poison for a soul? Sorry but you are a music ignorant or just old ;)
yes it is - it's not me who came up with that - and I liked jazz before - the mechanism why rock or jazz music gives you pleasure is explained here:
the article is lengthy but the explanation is there (just be patient and read on)
ok I this is the most telling bit but I recommend you read the whole article
The basis for this new musical culture is music based on the syncopated beat, which breaks the rhythm of life. This forces the spiritual light into the lower chakras, where it is released in a violent action. As explained elsewhere, the chakras are designed to release light, and therefore it feels good when light is flowing through them. So even if light is forced through the chakras, the flow of light will still produce a pleasurable sensation. This is what causes people to feel pleasure during a violent release of light, whether this happens through rock music, certain forms of sex or other activities that force the light through the lower chakras. When a man is raping a woman, he feels pleasure, but I am sure you agree that doesn't make rape right.