The average age of the Jazz audience is increasing rapidly. Rapidly enough to suggest that there is no replacement among young people. Young people aren't starting to listen to Jazz and carrying it along in their lives with them. Jazz is becoming more like Classical music in terms of its relationship to the audience. And just a Classical music is grappling with the problem of audience development, so is Jazz grappling with this problem. I believe, deeply that Jazz is still a very vital music that has much to say to ordinary people. But it has to be systematic about getting out the message.

It's actually now, more common to see conceptual productions of Shakespearian, which Hamlet is played as a Nazi, or a homosexual, or whatever concept is being laid over the play, then it is to see a production of Shakespeare in which there is no conceptual overlay and the play is simply being presented on its own terms.

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.

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.

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.

If I ever see another Shakespeare production where somebody drives a Jeep on stage, I'm going to run screaming up the aisle. These tend to be matters of design. I mean, we're seeing a lot of - it's very common to see Shakespeare with automatic weapons, things like that. They are clichés. They're new clichés, but they are clichés. And they're provincial. It's not clever to do Henry V, and have everybody dressed in United Nations soldier's costumes anymore. I've seen that one too. That kind of thing irritates me.

We are born into a vast room whose walls consist of a thousand doors of possibility. Each door is flung open to the world outside, and the room is filled with light and noise. We close some of the doors deliberately, sometimes with fear, sometimes with calm certainty. Others seem to close by themselves, some so quietly that we do not even notice.