 That's correct. At least through the 1920s and 30s, that begins to change. In the late 1940s, when the label R&B comes around. Now, this is not to say that country music did not benefit from the labor and talent of black musicians. In fact, one of the stories that I tell in the book is about Cecil Gant, a black R&B, blues, pianist, singer-songwriter from Tennessee, who actually played on a lot of country music setbacks.