Final answer:
The term adopted by other bands following the New Grass Revival's success is Progressive Bluegrass, which blends traditional bluegrass with other music genres.
Step-by-step explanation:
The success of the band called the New Grass Revival led to the adoption by other bands of the generic term Progressive Bluegrass. This term differentiates itself from traditional bluegrass by incorporating influences from other genres, including rock, jazz, and folk.
The combination of traditional bluegrass with these elements, much like the electrified adaptation of rhythm and blues into rock 'n' roll, represents the dynamic evolution of musical genres to reflect changing tastes and cultural influences.