10. Techno is a form of electronic dance music
(EDM)that emerged in Detroit, Michigan
in the United States during the mid to
late 1980s. The first recorded use of the
word techno in reference to a genre of
music was in 1988.Many styles of techno
now exist, but Detroit techno is seen as
the foundation upon which a number of
subgenres have been built.
11.
12. , also known as DJ, is a person who plays
recorded music for an audience. Originally, "disc" (sometimes
spelled "disk", although this is now uncommon) referred to
phonograph records, not the later Compact Discs. Today, the
term includes all forms of music playback, no matter the
medium.
There are several types of disc jockeys. Radio DJs or radio
personalities introduce and play music that is broadcast on
AM, FM, shortwave, digital, or internet radio stations. Club
DJs select and play music in bars, nightclubs, or discothèques,
or at parties or raves, or even in stadiums. Hip hop disc jockeys
select and play music using multiple turntables, often to back
up one or more MCs, and they may also do turntable
scratching to create percussive sounds. In reggae, the DJ
(deejay) is a vocalist who raps, "toasts", or chats over pre-recorded
rhythm tracks while the individual choosing and
playing them is referred to as a selector.Mobile DJs travel with
portable sound systems and play recorded music at a variety of
events. According to a 2012 study there are approximately 1¼
million professional disk jockeys in the world.
