Why It's Easier to "get" Modern art than Avant-garde Music
Music tastes are much more conservative than art, an idea that dates back at least to Adorno, but why is this? Who’s afraid of the avant-garde? is an interesting article on the subject.
Music, like any art, must be constantly rejuvenated by experiment. But “experimental” music surely only qualifies as such if it includes the possibility of failure. And if musical composition takes no account of cognition—denies that cognition has a role to play, or actively frustrates it—then composers cannot complain when their music is unloved.