Yeah, I've played trumpet for about 12 years. When I was in high school, Our jazz band was the best high school jazz band in the state the first year I was in it. Definately not because of me though (I was just a lowly freshman). We won every competition we were in. The other 3 years i was in it, we weren't as good because we lost a lot of really good players due to graduation, but we were still always one of the top bands in the state.

I took a trip to see Arturo Sandoval play with Virginia Tech's jazz band a couple years ago. It was a great show but i could tell Arturo was getting pretty pissed. They kept dragging a little bit and he kept grabbing a cowbell and beating it trying to speed them back up. It was really funny. He was trying to do it in a way that didn't look like he was trying to speed them up but it was very obvious what he was doing since he was playing slightly ahead of the beat.