I know that when I first tried to think of a great country guitar solo, the first 8 notes of Fulsom Prison Blues kept repeating in my mind. I've listened to a lot of country music, but it seems like country guitar solos, as much as I like them, haven't had the same impact on my consciousness of country music as they have on my sense of Rock n' Roll. I think the genres of rock and country are different in odd ways. I'm sure mandolins are used in rock music, but in my mind, a mandolin doesn't really fit easily into a rock n' roll song. Country music, in my opinion, is more of a collective style of music where solos and individualism are less prominent (that's one of the reasons I like country music so much). Country music is a lot less self-conscious than RnR, in my opinion, and because of that country music solos don't separate themselves easily from the entirety of the song they're embedded in.