Rock music is a genre that first emerged in the 1950s in the US. It did not take long for it to spread around the world though and it was the most popular form of music in Europe in the 1960s and 70s. The impact of rock music has been felt around the world and the music industry has profited a great deal from its popularity, with sales of rock music high for several decades.
However, rock music is very difficult to define, partly because it is slightly different in different parts of the world. Rock music in the US, for example, is a much broader definition than it is in Europe. In Europe, the dictionary definition is that it is a type of music that has a good strong beat but simple tunes. It also specifies that it is loud.
What is certain is that rock music includes the use of electric instruments such as guitars and piano. The term ‘rock’ was developed to help to distinguish the genre from standard pop music and that the debate on the definition is ongoing. Rock and Roll artists, include Elvis Presley and The Rolling Stones.