Gentle people, just get in you cars and your jets and head to Nashville to hear the difference. Take you all over to the Stagecoach Inn on Sunday nights, and not only will you hear the difference, you will see the difference. Old timers usually sit out front and play, Newgrass boys and girls take up the rooms in the back. The only thing is, I do believe that the likes of Earl Scruggs, Dave Grissman, Randy Scruggs, John Hartford(RIP) would take some, though not much, offense at the pidgeon holing going on here. If anyone in bluegrass is "generationless" it is Earl Scruggs. Pop in the Earl Scruggs and Friends CD and I think you will hear that. And where Nickel Creek is 3rd generation(at least) of Bluegrass, their style is probably more traditional than that of Bella Fleck or Mark O'Connor lets say. I think maybe determining what is NewGrass, BlueJAZZ, and traditional might be a better way to slice it up. Either way or anyway, some of the finest musicians in the world, and its great they are finally getting some of the credit and money they deserve.