Final answer:
Elmore James's guitar playing is a classic example of bottleneck blues, a style that uses a bottleneck to slide on guitar strings to produce a wailing sound. His approach contributed to the blues and influenced the birth of rock and roll with its combination of electric instruments and various music genres.
Step-by-step explanation:
While Elmore James's groups gave his music a modern sound, his own guitar playing was an example of bottleneck blues. This style of playing involves sliding a glass or metal object called a bottleneck over the strings of the guitar to create a distinctive, wailing sound that is closely associated with blues music.
Elmore James's approach to guitar, often using an electrified instrument, contributed greatly to the evolution of the blues genre and influenced many other genres, including rock and roll.
The combination of electric instruments with the sounds of gospel, blues, country, jazz, and R&B indeed gave rise to the rock and roll movement, which became widely popular with its heavy rhythm, simple lyrics, and catchy melodies, especially among teenagers.