SCIENTISTS REMAIN GATHERING evidencing that a larger mass of Grey Matter and Dendrites well-communicated by strong electrical impulses are needed to delight a person that listens to certain Classical Music. Their scientific research lead them to detect a well-defined correlation between certain Classical Music and human intellectual capacities.
Another reputable team ~this time made out of British and Italian scientists~ presented a quite similar explanation as to why few people can ~persistently and for extended periods of time~ have a preference for certain Classical Music. That British-Italian team made clear that they do not proclaim that listeners of heavy-metal or rap music are brain-damaged. They further point out that enjoyment of more elaborated music likely involves factors such as social and cultural conditions which surely play a role.
The 'BBC Music Magazine' published one article on long-term studies done at the Maudsley Hospital in London where it was corroborated that there is a link between musical taste and brain power. A scientist in those studies explains that "What this means is that you require to have more Grey Matter and Dendrite activity to value qualities of Classical Music. On the contrary, one does not need Gray Matter and Dendrites to like heavy-metal or rap."
Studies also reveal that older people who used to enjoy Classical Music throughout their lives begin to lose Grey Matter as they age. As expected, they ignore their beloved Classical Music to listen to music they used to consider disgusting.
Dr. John Jenkins of the University of London found his own research suggesting that mental performance increases and certain aspects of IQ tests show meaningfully better scores after subjects are exposed to certain pieces of music from the greatest Composers. Dr. Jenkins points out that the beneficial effects that he noted from many pieces of Classical Music apply to epilepsy patients as well.
Scientific studies lead to construe that areas of the brain get augmented as a direct result of often listening to Classical Music. Through their observations, educators concur that there are meaningful benefits in school performance when youngsters receive ~during formative years~ even basic training in Classical Music.>
The American Academy of Neurology found significant differences in the distribution of Gray Matter between brains trained in Classical Music since an early age and brains that remained not exposed to Classical Music. Academy's scientists discovered those who received a reasonable training in such music to have much larger volume of Grey Matter in five  regions of the brain and perceptibly pronounced difference in their cerebellum.
all of the above explains why in a visibly deprecated XXI century,
it has not been few the philharmonic orchestras across the world
that remain on a gloomy downward spiral and disappeared for a lack
of audiences with the qualities to be interested in classical music.
on the other hand, it is not difficult to learn about young folks not yet
30 years old who become multi-millonaires ~almost overnight~ after
the release of few cd's of their heavy metal, rap, or similar music.
we are going down. aren't we?