Final answer:
The revolution of recorded music began with Thomas Edison's invention of the phonograph in 1877, leading to the popularization of recorded sound. The mid-20th century saw the rise of rock and roll, greatly influenced by the technological advances and cultural shifts in society.
Step-by-step explanation:
The revolution of recorded music first began with the invention of the phonograph by Thomas Edison in 1877. This device was capable of recording and playing back sound, marking the inception of an era where music could be enjoyed independently of live performances. After Edison's phonograph, the music scene witnessed major changes leading to the popularization of various genres, including the rise of rock and roll in the mid-20th century, where singers like Sister Rosetta Tharpe and bands like Ike Turner's became influential.
The transition to Rhythm and Blues and the creation of Rock and Roll brought about a cultural shift, with music that celebrated youth and freedom. Rapid technological advancements like the 45 rpm single record, the jukebox, and the electric guitar, further fueled this musical revolution. Alan Freed, a radio DJ, played a pivotal role in making rock and roll mainstream by playing the music on the radio and organizing concerts, aiding its spread among American teens.