Final answer:
Elvis Presley's electric instrumentals blended with sounds of gospel, blues, country, jazz, and R&B, produced a characteristic energetic intensity in rockabilly, a style that defined an era and was crucial to the birth of rock and roll.
Step-by-step explanation:
The combination of Elvis Presley's electric instrumentals with the vibrant sounds of gospel, blues, country, jazz, and R&B produced an energetic intensity that was an important characteristic of rockabilly. This unique blend of musical influences and the innovative use of electric instruments helped create the new sound of rock and roll, which captivated teenagers across the United States in the 1950s.
Presley's early recordings at Sun Records, such as 'That's All Right' and 'Blue Moon of Kentucky', showcased his ability to merge these diverse styles into a harmonious and revolutionary sound that would define an era.
By listening to Presley's renditions and their original versions, one can appreciate how his upbringing in Memphis allowed him to absorb influences from both the lower Mississippi Delta and Kentucky, merging them into a single, groundbreaking style that became synonymous with Memphis' burgeoning rock scene.