There will be this mix of people like me who write for major national newspapers and amateur critics, practitioner critics, whose primary way of distributing what they talk about is through blogs and on the web. The line between professional and amateur criticism will become increasingly blurred. The problem here is that if you want to do this for a living, you have to be able to earn a living doing it.

The papers that flourish will be papers that serve a national audience. Papers that have figured out how to make the transition to the electronic platform that aren't simply providing a duplicate experience of the words on paper experience, but are doing something that arises organically from the new electronic medium. It's really just a matter of finding the right platforms for the way people want to read newspapers. I mean, maybe it will be the iPhone. But one way or another, newspapers on paper are just not really going to exist to any significant degree within a decade.

I'm especially interested in what I call practitioner criticism, which is when people who practice an art form start writing about it on blogs. I think that's an immensely important development. I want to see much, much more of that. People who make music who are verbally articulate. And not all musicians are verbally articulate. But those who are should be encouraged to write about what they do and their perception of what other people do. It makes the discourse smarter.

The problem with the Jude Law "Hamlet" was simply that it wasn't unpredictable, that it was a very down-the-center modern production. You wouldn't go to the theater expecting to see an old-fashioned "Hamlet" where everybody wears an old fashioned costume. You don't get points for putting on a "Hamlet" where everybody dresses in black. I've seen that one several times. But again, it's not that it has to be new, it simply that it has to be different, fresh, that it doesn't bore, that it doesn't make me - I don't feel as I'm watching it that I know where it's going to go.

I was interested in Armstrong to begin with because he is the most important figure in Jazz in the 20th Century. There's simply no question about it. I mean, if you're going to compare him to somebody, it's Shakespeare in terms of centrality of the tradition, in being at the beginning of it.

Blogging has mostly been an opportunity to react more immediately to experiences to try out ideas that I may end up using in the print media or in some other place. When I write books, it's a way for me to bring readers into the experience of writing the book, all through the process of writing the books that I write. I talk about what I'm up to in the blog. I let people know what I am doing. To me, it's just part of putting my professional life up in a way that people who are interested in it can access; and learning things from them as well.

Virgil Thomson, the great classical music critic, who was also a composer, but said that criticism was the only antidote he knew to pay publicity. Critics at their best are independent voices people take seriously their responsibility to see as many things as they can see, put them in the widest possible perspective, educate their readers, I really do think of myself as a teacher. Newspapers that don't carry arts criticism at all while not fulfill this function. And probably their arts journalism will be deprived as a result.