Me banging a stick on my front porch is a greater piece of music than Beethoven's 9th Symphony.
Disagree with me?
Guess what, art and music are entirely subjective. Just because the classical music establishment has spent two centuries institutionalizing one specific German guy's work doesn't mean it holds some objective monopoly on artistic value.
The reality is that most classical music purists have just deeply imprinted on a specific, highly structured Western style. That conditioning makes you think anyone who doesn't share your exact aesthetic opinions is "objectively wrong".
If my definition of art is about immediate expression, raw sound, and the individual human experience, then my stick-and-porch performance has just as much validity as a 1 hour symphony.