With all due respect to the Byrds and the Flying Burrito Brothers, it took the Nitty Gritty Dirt Band with this album to come up with a merger of rock and country music that worked for both sides and everyone involved. The opening number, "The Grand Ole Opry Song," set the tone for the album, showing that this band -- for all of their origins in rock and popular music -- was willing to meet country music on its terms, rather than as a vehicle for embellishment as rock music. The result, without a false or strained note anywhere among its 37 songs, was an all-star country project that worked (and transcended its country and rock origins), with the Nitty Gritty Dirt Band serving as catalyst and intersecting point for all of the talent involved, all of who gave superbly of themselves. Not only did this album result in new exposure to a new and wider audience for the likes of Mother Maybelle Carter, Roy Acuff, Earl Scruggs, Merle Travis, and others, but this was the first real country album that a lot of rock listeners under the age of 30 ever heard. Thus, it opened up pathways and dialogue in all directions, across several generations and cultural barriers; the dialogue between Doc Watson and Merle Travis alone was almost worth the price of admission. This was also one of rock's very few multi-disc sets to be fully justified in its length and content; at a time when unnecessary double-LPs were all the rage, the Nitty Gritty Dirt Band and company gave a triple album that, if anything, left audiences asking for more. The 2002 CD adds four bonus tracks, though only "Foggy Mountain Breakdown" is a proper song; two of the others consist of warmups and studio chat, while "Remember Me" (featuring Doc Watson) is just a fragment.