In many broadcast performance situations, the announcer is working from a script. For example, the news anchor has news copy to read and the voice-over announcer has a commercial script to follow. However, there are times when the announcer will be ad-libbing what he or she is saying. Of all the broadcast performers, the music announcer or radio disc jockey, more than anyone else, uses the ability to talk spontaneously.
According to the FCC, as of March 2012, there are just over 15,000 radio stations in the United States, and the current Broadcasting & Cable Yearbook lists most of these as music format stations. Add to this the satellite radio music channels and the hundreds of Internet “radio” ...