I believe the answer you're looking for is B. Guild.
McCarthy was involved during this issues- 1940s to 1950s!
Beats in the measure and counts on notes
Answer:
At the height of the initial pandemonium, in 1955-56, a select number of front-runners emerged, stars whose personalities and performing antics set the stage for all that was to follow: Elvis, of course; Chuck Berry, whose definitive guitar style (rooted in swing jazz and the uptown band blues of T-Bone Walker) was as widely emulated as his brilliant, vividly economical lyrics of teenage tribulations and triumphs.