Country Music is changing, no doubt. There are more types of Country Music now than there are any other genre of music. The sound of the bass on country records is definitely changing, or rather, evolving. But if you think about it, its always changing with the times. From its start in the early 30's-50's with the Upright or Doghouse Bass, to the Fender Precision, to Dano's and Rick's in the 60's, the first Active Basses of the 70's, then Graphite, Multi-String Basses in the 80's, Boutique and Imports in the 90's, and now in the new Millenium, were using all of the above, whether your in a retro country, trad. country, alt-country, country-rock, country-goth, bluegrass, texas country, etc, etc. Bottom line, though the P-Bass is a great default bass, there are no bounderies in this genre anymore, and you should play whatever makes you most comfortable. Ive even seen a few players in town playing 7 string basses, and they work alot. However, personally, IMO, these days I get more excited when I see someone playing something unusual, like an old B.C. Rich, or an Explorer Bass, a Rickenbacker, or an Epi Jack Casady with flatwounds. As I mentioned earlier, the Thunderbird bass is being used more and more often. I do see a passive bass trend though, seems were getting tired of (hi-fi) active preamps, and are getting back to the ballsy, bassy tone of passive basses.