I don't think the distinction between art music and entertainment music has anything to do with the instruments used. However, when the rock band plays Mussorgsky, do they intend it as art music or entertainment? Their performance of it may be pop music, while a performance on sitar, theremin and synthesizer may be intended for aesthetic purposes and therefore be art music.
Did Mozart write music for the masses? He was a court musician. He wrote primarily for the aristocracy, who would have had musical training. Classical composers wrote for an educated audience. Haydn's little jokes and surprises would not be surprising to a listener who did not know what to expect. Do fewer people listen to art music now than did in the 18th Century? I'm not sure. Now we have radio and recordings and low price public concerts which many people can afford. How many 18th C peasants had access to all of that?
So now we find that the masses today prefer pop music, just like the masses in the past may have preferred their slapstick comic operettas to serious operas.
I'm not saying that art music is better than entertainment music, or that people who listen to art music are better than people who listen to music for entertainment. I'm not even saying that art music isn't entertaining or that pop music isn't artistic. I am saying that now as in the past not everyone appreciates art music, whether because of lack of musical training or difference in preference. The separation between art and pop music is not new.
I agree with your last statement, but in my opinion "art music" offers so much deeper exploration. Better is a subjective word, but with the necessary training, in my opinion classical music offers so much more to the listener than "less educated" (again subjective) forms of music.
I know what it is to not understand classical music!!! But I have also learned to accept this as my own "lack of education," or experience with a certain style, genre, or composer of classical music. Rather than saying that I do not like it or even appreciate, I embrace it as something that I do not yet understand. Another world of harmony, dissonance, and rhythm, for me to exlpore and learn to love.
The problem is that we fail to educate the youth about classical music at all. If a youth is not involved directly with a musical instrument or activity then it is almost 99 percent true that they will take up listening to classical music. Those that do may listen to the occasional pop piece and stray away from more serious pieces that take time and patience to listen to. The same is even true for those who take up instruments. Even though they may enjoy repertoire that they play they do not seriously seek or listen to classical music. Only very lightly. I find in general it is piano students, and strings students who seek and really enjoy classical music, with many exceptions however to this rule (it's a generalization about the youth.) The youth are bombarded with industry music and so much uninspired crap, produced by commercialized pop artists as stated in the article. Just because someone enjoys hardcore rap mor than they do classical music, does not mean that hardcore rap offers more enjoyment.
It's difficult to argue because it makes enjoyment like an empirical numerical value. But I will argue that classical music offers more. More passion, more intellectualism, more humanity, more discovery. I enjoy pop music and fold tunes occasionaly, but I find (although I am not a valid source for pop music) less subtleties. The subtleties that allow for a piece to be explored listened to more than once. Most pop tunes I understand right off the bat with one listening. There is no depth. That is not to say there is no enjoyment. I love many songs by Queen, but I wouldn't take a queen song and dive into it like a Scriabin or Mahler symphony. This is the difference between the two. Queen offers is good very good, but classical music is a world. Every once and awhile I like to step out of the world of classical music and chill with some pop music but I find that most of my musical cravings can be satisfied by the broad range and styles of classical music pieces.
So many points to be made but thats what I'm thinking of right now. Apologies if you found this biased and ignorant in terms of pop music and such, I'd be willing to listen to any arguments!
Thanks for the article by the way, its really helped to articulate some of the ideas I have floating around in my head that I am still trying to articulate.