This is where rock'n'roll's roots are at. I bought the original 7 (double) LP set. Their original CD equivalents replicated them but for a few track omissions on various volumes. This box includes ALL of the origial LP series plus some 20+ extra tracks not previously included covering the fertile period between 1947-1974. It's an education in itself. This is what boxed sets are about. The raw stuff from the 40's & 50's are a pointer to Elvis & Jerry Lee. This is the some of the original music those artists cut their teeth on. Hearing Big Joe Turner for the first time was a revelation for myself particularly "Corrina, Corrine" and "Honey Hush". I further investigated Ray Charles' recorded output based on this set. The hits are here and things that you may vaguely rememnber as well. Legends such as the Professor Longhair, Big Joe Turner, Lavern Baker, Ray Charles, The Drifters, The Coasters, Wilson Pickett, Aretha Franklin, Otis Redding, Sam & Dave and many others are more than amply represented here. I had heard some of these songs for the first time as cover versions by later artists such as Foghat, Elvis and even Paul McCartney whose "Run Devil Run" CD was a tribute to the 50's and a couple of tracks on this set get a nod there. Atlantic have done a wonderful job with this release. This is what R & B really is...before it was just a couple of initials representing what passes for today's music. I doubt a kid listening to that stuff would know what those letters stood for in today's context. My own preferences are to the 60's period during which Atlantic,Stax & Volt really came into their own as great Soul labels. Where Motown was probably more "showbizzy", which is not meant as a criticism, Atlantic revealed real grit and toughness in it's music. I thoroughly recommend this box set if only as a more than ample education of the rich legacy of American Rhythm & Blues music.