Beethoven certainly changed the way that people thought about music, but this change was a change for the worse. From the speculations of Pythagoras about the "music of the spheres" in ancient Greece onwards, most western musicians had agreed that musical beauty was based on a mysterious connection between sound and mathematics, and that this provided music with an objective goal, something that transcended the individual composer's idiosyncrasies and aspired to the universal. Beethoven managed to put an end to this noble tradition by inaugurating a barbaric U-turn away from an other-directed music to an inward-directed, narcissistic focus on the composer himself and his own tortured soul.

This was a ghastly inversion that led slowly but inevitably to the awful atonal music of Schoenberg and Webern. In other words, almost everything that went wrong with music in the 19th and 20th centuries is ultimately Beethoven's fault. Poor old Schoenberg was simply taking Beethoven's original mistake to its ultimate, monstrous logical conclusion.