An analysis of how musical genres "Country", and " Soul" , defined racial lines in American culture. Country obviously being identified with whites, whereas Soul was considered black music. To a large extent that was true and particularly when you had the likes of Merle Haggard representing part of the white backlash against the Civil Rights and the Black Power movements. The Nashville recording empire and Southern Rock in the later 60s and early 70s, would be embraced by conservative whites such as Nixon, George Wallace and others to further their political agenda.
However, it was hardly as simple as a black/white division would suggest. The Country Triangle - Nashville, Memphis, Muscle Shoals had mixed race studio musicians recording many of the songs that would be associated with "white" music. Furthermore, after you moved beyond the older "hillbilly" roots of Country, much of its later incarnations were rooted in the black musical tradition and sound, and you had black composers writing the music for white artists.
Meanwhile, Soul (previously Rhythm and Blues but given a name change) was increasingly adapted to appeal to a crossover market. Barry Gordy at Motown in Detroit was very successful with the very popular 3-minute pop hits formula. It featured black recording stars but resonated well with white listeners.
And from the mid-50s on, you had Memphis with distinctly black Blues roots enjoying immense success with Elvis and other white singers and bands. Down the road in Muscle Shoals, Alabama, the first studio was established in the early 50s and would eventually be hailed as a model of racial enlightenment. This was partially true but it too was not immune to racial tensions in management and production. The strongest part of the book was the coverage of the evolution of Muscle Shoals and its genre offspring: Swamp Music, Outlaw Rock (think Willie Nelson), and Southern Rock.
In essence, though Country and Soul may have been the markers, you had blacks creating white music; whites creating black music, and the bottom line was achieving commercial success regardless of the labels. As for the core of studio musicians, who like the Wrecking Crew on the West coast, they weren't particular. They came from an assortment of jazz, blues, and classical backgrounds and played what you put in front of them as they moved from site to site bringing their considerable talents and collecting their paychecks. With the exception of Booker T and the MGs, who as much as anyone was credited with creating the " Memphis Sound", most studio musicians worked in obscurity.
I vacillated between rating it a strong "3" or a light "4" and went with the latter. It is certainly informative and those interested in music history will find it a well of information. But it was repetitive and you have to navigate an often confusing maze of record labels, contract battles, and studio shuffling and name changes.