I had a checklist in my mind of the things that make a biography practical. Is the source material centralized? Is it easy to find? Are there new primary sources that no one has ever had access to? Are all the sources in English? If they're not, are they in a language that you speak? And I realized that not only is Armstrong the most important figure of Jazz in the 20th Century, but he's a perfect subject for a biography for all of these reasons. I had always loved his music and I had been fascinated in him as a personality. And that's really the key to writing a biography.

I should also mention that the Neue Galerie is piping music into the galleries where "Klee and America" is hanging, a practice for which vulgar is not even close to the word. Yes, I like Schumann's Carnaval, but I'm damned if I know why anybody thinks the paintings of Paul Klee profit from being viewed with Carnaval playing in the background.

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.

I've always loved opera; it never occurred to me that I would write a proper libretto. One of my closest friends is a composer, Paul Moravec, and a few years ago, Paul and I were at lunch, and I said to him, "you really have to write an opera." So, he says very casually to me, "I'll do it if you write the libretto." Well, little did I know that the within a couple of years we would end up getting a commission from the Santa Fe Opera to write an opera together, "The Letter," which turned out to be the most successful commissioned opera in the history of the Santa Fe Opera.

Your regional newspaper, and I like to use this example, in your local museum buys a Picasso, that's news especially if they've spent $10 million for it. But if you don't have a credit on your staff then you don't have anybody who's confident to say whether or not it was a good Picasso, might even be aware of the fact that there are bad Picassos. Arts journalists who don't have the experience of criticism, the skill of criticism, don't think in terms of critical evaluation are not going to be as good a journalist as they might be.

The Armstrong record that I personally like the most, is a recording of a song by Harold Arlen called, "I Got a Right to Sing the Blues" . Most of Armstrong's solos tended to stick pretty close to the melody. But for some reason, it's like he let go of the tether and suddenly he's playing this beautiful high, almost abstract line that's floating above the beat. I compare it to the way that a 19th century operatic tenor might have sang an Aria because he's just completely let loose of the background and he's making this magic sort of flying above the staff.

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.