-
The rock and roll music was introduced in the 1950s, fusion of electricity blues, country and gospel music in this time period.Rock crosses over to the Pop charts form 1955 and on.
-
The sixties dominate the popular music charts, new styles came out such as soul, surf, folk rock, the british invasion.
-
The early seventies were marked by deaths of popular rock artists, Psychedelic music declines but morphed into hard rock and some others.
-
The MTV television launched on TV systems, music videos were a marketing tool.
-
The internet allowed the digital disbrution of music, and intoduced a lot of new rock such as hip hop, alternative rock, and jams.