A disc jockey, more commonly abbreviated as DJ, is a person who plays recorded music for an audience. Types of DJs include radio DJs, club DJs, mobile DJs, and turntablists. Originally, the "disc" in "disc jockey" referred to shellac and later vinyl records, but nowadays DJ is used as an all-encompassing term to also describe persons who mix music from other recording media such as cassettes, CDs or digital audio files on a CDJ, controller, or even a laptop. DJs may adopt the title "DJ" in front of their real names, adopted pseudonyms, or stage names.
A remix is a piece of media which has been altered or contorted from its original state by adding, removing, or changing pieces of the item. A song, piece of artwork, book, video, poem, or photograph can all be remixes. The only characteristic of a remix is that it appropriates and changes other materials to create something new.
Copyrights can either be licensed or assigned by the owner of the copyright. A copyright collective is a non-governmental body created by copyright law or private agreement which licenses copyrighted works on behalf of the authors and engages in collective rights management. Copyright societies track all the events and venues where copyrighted works are used and ensure that the copyright holders listed with the society are remunerated for such usage. The copyright society publishes its own tariff scheme on its websites and collects a nominal administrative fee on every transaction.
Scratching, sometimes referred to as scrubbing, is a DJ and turntablist technique of moving a vinyl record back and forth on a turntable to produce percussive or rhythmic sounds. A crossfader on a DJ mixer may be used to fade between two records simultaneously.
PRS for Music Limited is a British music copyright collective, made up of two collection societies: the Mechanical-Copyright Protection Society (MCPS) and the Performing Right Society (PRS). It undertakes collective rights management for musical works on behalf of its 160,000 members. PRS for Music was formed in 1997 following the MCPS-PRS Alliance. In 2009, PRS and MCPS-PRS Alliance realigned their brands and became PRS for Music.
A royalty payment is a payment made by one party to another that owns a particular asset, for the right to ongoing use of that asset. Royalties are typically agreed upon as a percentage of gross or net revenues derived from the use of an asset or a fixed price per unit sold of an item of such, but there are also other modes and metrics of compensation. A royalty interest is the right to collect a stream of future royalty payments.
The first-sale doctrine is an American legal concept that limits the rights of an intellectual property owner to control resale of products embodying its intellectual property. The doctrine enables the distribution chain of copyrighted products, library lending, giving, video rentals and secondary markets for copyrighted works. In trademark law, this same doctrine enables reselling of trademarked products after the trademark holder puts the products on the market. In the case of patented products, the doctrine allows resale of patented products without any control from the patent holder. The first sale doctrine does not apply to patented processes, which are instead governed by the patent exhaustion doctrine.
The Mechanical-Copyright Protection Society (MCPS) is an organisation that collects royalties and protects rights for music publisher, song writer and composer members, when their music is reproduced, in any format – including online, physical and synchronised.
Music on hold (MOH) is the business practice of playing recorded music to fill the silence that would be heard by telephone callers who have been placed on hold. It is especially common in situations involving customer service.
A maxi single or maxi-single is a music single release with more than the usual two tracks of an A-side song and a B-side song.
Phonographic Performance Limited (PPL) is a British music copyright collective. It is a private limited company that is registered in the UK. PPL was founded by Decca Records and EMI and incorporated on 12 May 1934, and undertakes collective rights management of sound recordings on behalf of its record-company members, and distributes the fees collected to both its record company (rights holder) members and performer members. As of 2019, PPL collected royalties for over 110,000 performers and recording rightsholders.
Vinyl emulation allows a user to physically manipulate the playback of digital audio files on a computer using the turntables as an interface, thus preserving the hands-on control and feel of DJing with vinyl. This has the added advantage of using turntables to play back audio recordings not available in phonograph form. This method allows DJs to scratch, beatmatch, and perform other turntablism that would be impossible with a conventional keyboard-and-mouse computer interface or less tactile control devices.
In copyright law, a mechanical license is a license from the holder of a copyright of a composition or musical work, to another party to create a "cover song", reproduce, or sample a portion of the original composition. It applies to copyrighted work that is neither a free/open source item nor in the public domain.
A DJ mix or DJ mixset is a sequence of musical tracks typically mixed together to appear as one continuous track. DJ mixes are usually performed using a DJ mixer and multiple sounds sources, such as turntables, CD players, digital audio players or computer sound cards, sometimes with the addition of samplers and effects units, although it is possible to create one using sound editing software.
A CDJ is a specialized digital music player for DJing. Originally designed to play music from compact discs, many CDJs can play digital music files stored on USB flash drives or SD cards. In typical use, at least two CDJs are plugged into a DJ mixer. CDJs have jog wheels and pitch faders that allow manipulation of the digital music similar to a vinyl record on a DJ turntable. Many have additional features such as loops and beat analysis that are not present on turntables. Additionally, some can function as DJ controllers to control the playback of digital files in DJ software running on a laptop instead of playing the files on the CDJ.
Production music is recorded music that can be licensed to customers for use in film, television, radio and other media. Often, the music is produced and owned by production music libraries.
A mixtape is a compilation of music, typically from multiple sources, recorded onto a medium. With origins in the 1980s, the term normally describes a homemade compilation of music onto a cassette tape, CD, or digital playlist. The songs are either ordered sequentially or made into a continuous programme by beatmatching the songs and creating seamless transitions at their beginnings and endings with fades or abrupt edits. Essayist Geoffrey O'Brien described this definition of the mixtape as "perhaps the most widely practiced American art form".
An Internet radio license is a specific type of broadcast license that allows the licensee to operate an Internet radio station. The licensing authority and number of licenses required varies from country to country, with some countries requiring multiple to cover various areas of a station's operation, and other countries not having stringent licensing procedures in place. Licensing costs also vary, based on the number of listeners that a station has, as well as other factors such as the number of songs played, the number of broadcast hours, and whether tracks are dubbed to a digital playout system.
John Truelove is an English record producer, DJ and music entrepreneur.
