For such a long time I listened to the only two musical genres known to mankind, Country AND Western. They are far more separated today. In fact Country has many divisions within itself. Country swing, sW Country, Tex Mex, Rock-a-Billy, Traditional, Pop Country (my absolute least fav genre... as it resembles just plain old bad rock & roll or pop music... Not Country), Cowboy, etc.
Bluegrass used to be THE country sound. It is now it's own quite specific genre/sound, and has remained more unchanged than Country or Western music. IMO.
I believe the thing that keeps Bluegrass music so pure is its acoustic signature. IMO there is something to be said for NOT plugging in the instruments every time!
Singers used to be the song writers. New top talent used to be those whose songs were those which told the truth sincerely. A different sound or style that contained the aforementioned aspects were those chosen and promoted by the recording industry. They were the Cash's, H Howards, H Williams, L Frizzells, B Owens, L Lynns, D Partons, Carter's Wills, & Monroes.
Now it's more the next pretty face with some talent, yet no particularly individualistic sound song writting ability, or style.
New & Fresh, account presently for the industries primary contenders and more highly promoted, uh, artists these days than ever before. There's a new one just about each week. I've quit keeping up with them all.
Travis Tritt said it best in one of his songs... "Country ain't country any more" Bluegrass, however, still is as honest as it has ever been.
The new Cash's, Haggard's, & Jones' are the Paisleys', Nichols', Straits', Atkins' & Jackson's. Some of which, like their predecessors emmulate past greats with either their sound or styles... ie., Williams (Strait), Frizzell (Haggard, Nichols), Wills (Asleep At the Wheel) Buck owens (Dwight y), etc.
Ill continue to tune in and out searching for talent with unique style and sound, and let the latest sensation prove or disprove themselves by their efforts, not their CD sales.