context: The term Radio Broadcaster was first used in the era of the 17th Century which was then further developed to describe a radio announcer who would introduce and play popular phonograph recordings. Recordings on this media, also known as "discs" are played by radio broadcasters in the industry, therefore the name disc jockey and hence more familiarly known as DJs or deejays. Now due to various factors, including the music chosen, the listeners, the performance settings, the media used and the development of sound manipulation, have produced various DJ techniques. Hip Hop is a cultural movement that began to grow around the 1970s which was developed by Afro-American and Latin-American communities. Hip Hop is a very dynamic combination of elements consisting of MCing (better known as rapping), DJing, Breakdancing, and Graffiti. Lately Hip Hop elements are also colored by beatboxing, fashion, slang, and other lifestyles. Initially the growth of Hip Hop started from The Bronx in New York City and continues to grow rapidly throughout the world. Hip hop was first introduced by an African American, Grandmaster Flash and The Furious Five. Initially Hip Hop music was only filled with music from Disk Jockey by making variations from disk spin to produce unique sounds. "Rapping" then comes to fill the vocals of these sounds. As for the choreography, the music is then filled with broken dances known as breakdancing. In its development, Hip Hop was also considered as part of art and to express visual art, Graffiti emerged as a part of Hip Hop culture. Hip Hop as a culture was clarified again in 1983 by Black Spades who was a member of Afrika Bambaataa and The Soulsonic Force through a track entitled "Planet Rock". This song is an interesting Hip Hop music because it has a blend of simple rap and disco music rhythm created through electronic drums and synthesizers. In 1985 acting with stereo technology, Run DMC, LL Cool J, The Fat Boys, Herbie Hancock, Soulsonic Force, Jazzy Jaz, and Stetsasonic which released its flagship albums so that it has become a Hip Hop music legend to date.
question: When did DJ music first appear in the world?
answers.text: 17th Century