Karaoke originated as a form of entertainment, in Japan, wherein recreational singers sang songs along with recorded music, deviating from the traditional way of accompaniment of orchestra playing several musical instruments. Gradually, with usage, people started to associate it with any music of a popular pop song or a film song, without the lead vocal. In other words, it is now synonymous with any song minus the lead vocal. It is a convenient form of musical complement as it helps one in getting rid of spatial constraints and expenses related to the traditional orchestra.
Karaoke music finds great deal of application in the daily lives of mankind in the modern epoch. It can be credited for its rendering of life and oomph to live performances, making it more powerful. Party bashes have much to do with this typical variety of music or rather it is rightly attributed ample importance by considering it as the musical soul of celebrations. This well sought after music is produced by what is popularly known as a karaoke machine which generally consists of a music player, microphone inputs, means to alter pitch as desired and also an audio output. The most commonly found and used machines are CD+G, laser disc, VCD or DVD players.
The karaoke players were at first sited in public venues like restaurants and hotels. Soon these started to attain much popularity and started to be placed in houses and business establishments. The aforesaid machines and players make the karaoke equipment. These are highly in demand due to it widespread popularity and utility value.
Several sources offer the above said items. There are several manufacturers catering to your musical accompaniment needs. Some websites like karaoke.com also serve as good sources.