That's what they used to do. You would do more of that than you done variations. David Jones didn't come there with no slap tongue. David Jones run the changes all over the place. There were all the saxophones. Coleman Hawkins was the star in New York, because he was doing the ["cluck cluck cluck" sound]. They told him, you better go up there and hear that cat from New Orleans. That's how, that's the greatest scene he created. He went up there and heard David Jones, and he listened and he listened and he listened. He got off a couple of nights from Fletcher Henderson's band to go up there and hear David Jones. Next when David Jones and them left the Savoy, Coleman Hawkins had a new style. But if you say that, people are going to say to you, Lee Collins taught me that. David Jones stop all that slap tonguing. They start running variations, they call it first. But the New Yorkers call it running changes. Changes, call it that, they call it changes. You know about that?