Heh, call it my take on reality. I've said it before, I'll say it again. Our artistic freedom extends to the last listener. So, if you're composing with only yourself in mind, obviously your artistic freedom is whatever you make of it. When we then bring the issue of "who is listening" to modern music, I stand by my assessment... our artistic freedom extends to the last person who listens. If the issue is whether or not anyone is listening to modern works, clearly there are people listening. If the issue is why more people are not listening, this is my opinion on the matter.
That's all I have to say about it.
Are we taking our cues on the life of Beethoven from Immortal Beloved? Here's a tip. Don't.
From what we understand about Beethoven, this period of "seclusion" in his life lasted up to about his Third Symphony! Beyond that, while there were emotional trials to face in life, I believe it is you that is over-generalizing the details to make a point that Beethoven was composing in a vacuum. Quite the opposite, actually. He was actually quite passionate and outspoken on matters, he was social in many respects, and he was not living a life of perpetual isolation as it was dramatized in the movie at some points of his life. While the issues with his nephew's suicide attempt weighed on his mind, he was quite literally engaged with the world around him... which happened to be one of his great fears when he wrote his letter to his brother before writing the Eroica, that he would be unable to be engaged with the world because of his condition.
To say otherwise is to mitigate the circumstances that he lived with and overcame. To say Beethoven composed in a vacuum is, quite possibly, the most ridiculous thing I've read in this thread.
As to your other points, Jason, I have to say that taking the aristocracy into account, there was a far greater consumption of music in that social class than among the peasantry as well. What I mean by this is that "minstrel" music was a far cry from what a "Rock Concert" is today. People arrive in the hundreds of thousands to see a Rock Star perform live, and if you're Michael Jackson, multiply that number by a hundred. Still, with communication being what it was in the 18th Century, there was a far greater demand by paying attendees for the art, and there were plenty among the commoners that would, if they could, attend a symphony orchestra concert.
But that's just the tip of the iceberg. Today, the level of complexity and artistry in these "common", "middle-class" events where music is performed is just as viable as the complexity of a "modern music concert." There is no distinction to make now between "art" and "popular" the way the distinction could be made in the 18th Century (atrociously, of course, because the distinction is unnecessary anyway beyond the trivial discussion we're having here). Quite frankly, I'm blown away that this is being glossed over as though it's broadly the same now as it was then - another generalization that appears to ignore a great deal of differences in the WORK PRODUCT (not just the emergence of a middle class) and the consumption of it - it's not even close, not even in the ball park. Sadly, I think some of the academics out there approach it with this same, grossly over-generalized misconception.
I might vomit if I continue hearing it construed in this manner.