When me and my brother would go to see our daddy playing, there'd be 30 people in the audience. I was only 14 or 15, but I realised something was wrong.

Our culture is what we did together. What did Walt Whitman represent for all of us? What was his message to us? That is an inheritance, and when we squander that inheritance we act outside. We don't know who we are; we don't know where we are.

The nerves are a problem on trumpet, because when you mess up everyone can hear it. Just remember most people are too polite to say anything about it. That should calm your nerves.

He [Benny Carter] is all that every jazz musician the world over wants to be. He's performed 20,000 nights. How many shoes have been shined? How much mascara put on? Rouge? How many of those impossible bowties have been tied? How many love songs have been sung? How many dances have been danced? How many have passed to the sound of his music? It's been said that a man should not be forced to live up to his art. Benny Carter is one of the rare instances when we wonder whether the great art that a man has created can live up to him.

I worry more about the marketing that's taken hold since the 70s. The Jazz era, the Swing era, those were huge. Entire decades were named for music. In the 1940s - after World War II - changes in taxation, ballrooms closing, people moving to the suburbs, and the onset of target marketing and the confusion of commerce with art caused some things to happen as a result that have taken us away from jazz and what jazz offers us.

In the Jazz at Lincoln Center Orchestra we play such a diversity of music, with 10 arrangers in the band, we don't really worry about whether it's contemporary or not.

In Jazz, improvisation isn't a matter of just making any ol' thing up. Jazz, like any language, has its own grammer and vocabulary. There's no right or wrong, just some choices that are better than others.