Jeremy Denk, one of the best music writers around, as well as the best pianists, talks about why he hates the Goldberg Variations.
And Emilie of the Public Emilie blog (I love that blog title) talks about how musicians are exploited and why we should get paid a living wage. If you do not make the bulk of your income by performing and/or teaching music, then this is required reading for you! (If you do, then you already know all this, but it's nice to be validated.) Key sentence: "Because music is [others'] hobby, I fear they assume it is mine." But really, go read the whole thing.