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writing a song

Frequently Asked Questions

Music Industry Terminology
What is the P Line?
The P Line is a field of data which may be reported to The MLC by a DSP. It represents the Sound Recording Owner of Record. This may not necessarily be the party that has released or distributed the recording, and this party may change over time.
What is the Label Name?
The Label Name is a field of data which may be reported to The MLC by a DSP. It represents the U.S. Releasing Party (in other words, the Record Label which released the recording into the marketplace).
What is a collective management organization (CMO)?
A CMO is an organization which manages the collective rights of its members. In the music industry, examples of CMOs are performing rights organizations, mechanical rights organizations and performers' rights organizations. When The MLC mentions CMOs, it is usually in the context of mechanical rights organizations based outside of the United States, such as MCPS in the U.K., AMCOS in Australia, or SACM in Mexico.
What is a Common Works Registration (CWR) format?

CWR is a globally recognized electronic message standard format used by music publishers and publishing administrators to register, update, and communicate data relating to musical works information, including collection shares with mechanical and performing rights organizations. It was created as part of the Common Information System (CIS) initiative overseen by CISAC. Click here for more information about registering your works.

What is a musical work?
Sometimes also referred to as a composition or song, a musical work consists of music (melody, harmony, rhythm), including any accompanying lyrics. A musical work may be embodied in a sound recording but is not the same as a sound recording from a copyright perspective.
What is a sound recording?
A sound recording is the result of recording a series of musical, spoken, or other sounds. A sound recording may embody a musical work but is not the same as a musical work. Sometimes people refer to this as a track.
What is a music video?
A music video is audiovisual media typically comprised of one sound recording, which incorporates one musical work. Historically, these were viewed on video channels like MTV. Today they are streamed on a variety of video platforms, like YouTube.
What is a songwriter, composer, or lyricist?
A songwriter is someone who applies their creative talent to the creation of musical works, writing the music, and sometimes also the lyrics, usually in a popular music style (e.g., rock, country, hip hop, pop). A composer is someone who applies their creative talent to the creation of musical works, composing the music, usually in a classical or jazz musical style.>A lyricist is someone who applies their creative talent to the creation of musical works, writing the lyrics, across many styles of music including musical theater.

A shorthand way of referring collectively to songwriters, composers, and lyricists is to refer to them as writers. Writers may be the sole creator of a musical work or may collaborate with other others in its creation. A writer may also be a recording artist.
What is copyright?

Copyright is a form of protection granted by law for original works of authorship fixed in a tangible medium of expression. In the U.S. and in most other countries, a musical work, fixed in a system of music notation or on paper, or in a recording may be protected under copyright law. A sound recording may separately be protected under copyright law. Copyright protection applies to both musical works and sound recordings that have been made available to the public or kept unavailable. For more information on copyright in the U.S., visit https://www.copyright.gov/help/faq/.

What is a self-administered songwriter, composer or lyricist?
Songwriters, composers, and lyricists are “self-administered” if they have retained the right to register any of their own musical works with The MLC AND collect their own mechanical royalties either directly or through a business manager, accountant, lawyer, or other representative/agent.

Songwriters, composers, and lyricists who have assigned their rights to register their musical works and collect their mechanical royalties in the United States to a music publisher or publishing administrator, do not need to become a Member of The MLC. Their publisher or publishing administrator will handle the collection and registration. If a songwriter, composer, or lyricist works with a music publisher or publishing administrator in any capacity, they should check with that music publisher or publishing administrator before becoming a Member of The MLC.
What is a record company (or record label)?
A record company is an entity which invests its resources into the creation, promotion, acquisition, distribution, and/or licensing of sound recording and music video assets and receives revenue when these assets are commercially exploited.
What is a music distributor or music aggregator?
A music distributor or music aggregator is an entity which invests its resources into the distribution of sound recordings and music video assets and receives revenue when these assets are streamed, downloaded, or physically sold. A record distributor enters into distribution deals with record companies or with self-released artists. In some cases, a record distributor may be a division in a global entertainment company which also owns record companies. In other cases, it may be a stand-alone company.
What is a digital service provider (DSP)?
A digital service provider is an entity which invests its resources into the development, promotion, and use of a technology platform to deliver sound recordings to consumers as streams or downloads, and receives revenue from either consumer subscriptions to the service or advertisers who pay to advertise to consumers of the service.
What is an interactive stream, permanent download, or limited download?
Digital service providers may provide one or more of these types of user experiences to consumers of their services:

Interactive Stream: A digital transmission of a sound recording where the consumer has control over which sound recording to stream and in what order to stream it. An example of this is the user experience offered by Spotify and Apple Music.

Permanent Download: A digital transmission of a sound recording in the form of a download, where the consumer has unlimited control over how many times to access it. An example of this are the recordings available for download in the iTunes Store.

Limited Download: A digital transmission of a sound recording where the consumer has limited control over either the length of time or the number of times they can access it. An example of this are the recordings available for off-line access by Spotify and Apple Music.

Non-Interactive Stream: A digital transmission of a sound recording where the consumer has limited control over which sound recording to stream, in what order it appears, and how many times to stream it, similar to a radio broadcast.

The MLC grants licenses to, and collects and distributes royalties from, digital service providers for interactive streams, limited downloads, and permanent downloads. The MLC does not grant licenses to, nor collects royalties from, digital service providers for non-interactive streams.
What are mechanical licenses and royalties?

A mechanical license is permission to reproduce and distribute a musical work in the form of a physical or digital phonorecord. An example of a physical phonorecord is a sound recording on a CD or vinyl record. Examples of digital phonorecords are sound recordings delivered as interactive streams, limited downloads, or permanent downloads. If a musical work is protected by copyright law, its unauthorized reproduction and distribution is copyright infringement.

A mechanical license may be obtained through a voluntarily negotiated license between the party requesting the license and the party granting it, or through the use of a “compulsory” license. Section 115 of the U.S. Copyright Act establishes a compulsory license (sometime also called a “statutory license”), and if certain conditions are met, it means that the party wishing to obtain a license is granted one as a matter of law, regardless of what the copyright owner wants, so long as they comply with the rules set forth in the law regarding the operation of the license. The law establishes eligibility requirements and obligations.

Mechanical licenses require the payment of mechanical royalties to the copyright owner or administrator of a musical work. In the case of a voluntarily negotiated license, the royalty rate is negotiated. In the case of a compulsory license, the rate is set by the Copyright Royalty Board (known as the CRB), a three-judge panel within the U.S. Library of Congress.

For more information on the compulsory mechanical license for making and distributing physical phonorecords, read the Copyright Office circular found at https://www.copyright.gov/circs/circ73a.pdf.

What is the blanket compulsory mechanical license?
The blanket license that is administered by The MLC is a compulsory license that allows DSPs to make and distribute digital phonorecords of every musical work that is eligible for a compulsory mechanical license, provided that the DSP pays royalties for its uses of musical works and complies with various requirements, such as to report detailed information on what works were used. A DSP only needs to secure one mechanical license, the blanket compulsory mechanical license, instead of securing a license on a musical work share-by-share basis.
What are public performance licenses and royalties?

A public performance license is permission to perform a work at a place open to the public or where a substantial number of people outside of a normal circle of family and friends is gathered. It includes transmitting or broadcasting the work, whether the members of the public are capable of receiving the performance receive it in the same place or in separate places and at the same time or at different times. The MLC is not involved in public performance licenses or royalties.

Public performance licenses for the performance of musical works are generally granted by performing rights organizations, like ASCAP, BMI, AllTrack, SESAC, and GMR, as blanket licenses. These organizations collect performance royalties from entities responsible for presenting the performance, such as radio stations, night clubs, and digital service providers, and pay them on to songwriters, composers, lyricists, and music publishers.

Public performance licenses for the performance of sound recordings via digital transmission are generally granted as compulsory licenses under section 114 of the U.S. copyright law. These licenses are administered by SoundExchange, which also collects royalties from non-interactive digital service providers (including webcasters and satellite radio) and pays them on to artists and sound recording copyright owners.

What are sychronization licenses and royalties?
A synchronization license is permission to incorporate a musical work and/or sound recording into an audiovisual work, such as a movie, television show, video game, or music video. Another example of where music is incorporated into an audiovisual work is the video content created and posted by users of platforms such as YouTube. The MLC is not involved in synchronization licenses or royalties.
What are record royalties?
Sometimes also referred to as master royalties, record royalties are payments from record companies to artists based on the legal agreements between them. They typically involve a record company paying the artist a portion of the revenue it receives from the reproduction, distribution, or licensing of sound recordings and music videos that incorporate the artist’s performance. In the case of a self-released artist, the record royalty revenue typically flows directly from the record distributor to the artist. The MLC is not involved in record royalties.
What is the Music Modernization Act (MMA)?

The Orrin G. Hatch-Bob Goodlatte Music Modernization Act (MMA) of 2018 or ‘Music Modernization Act’ for short, is the most significant piece of copyright legislation in decades and updates our current laws to reflect modern consumer preferences and technological developments in the music marketplace. The law is organized into three key titles: Title I—Musical Works Modernization Act; Title II—Classics Protection and Access Act; and Title III—Allocation for Music Producers Act.

Title I of the Act, the Musical Works Modernization Act, replaces the existing work-by-work compulsory licensing structure for making and distributing musical works with a blanket licensing system for digital music providers to make and distribute digital phonorecord deliveries (e.g., permanent downloads, limited downloads, or interactive streams). It also establishes a mechanical licensing collective to administer the blanket license, and a digital licensee coordinator to coordinate the activities of the licensees and designate a representative to serve as a non-voting member on the board of the collective.

For more information, visit the MMA page on the Copyright Office website.

What is a music publisher?
A music publisher is an entity which invests its resources into the creation, promotion, acquisition, licensing, and/or administration of musical work assets and receives revenue when these assets are commercially exploited.
What is an administrator?
An administrator (sometimes called a publishing administrator) is an entity which engages in many types of administrative activities that a music publisher would generally do, on behalf of its publisher, songwriter, composer, and lyricist clients.
Where can I find information about licensing acivities that The MLC is not involved with?

There are many organizations which host industry conferences and events and provide helpful information to their members and to the general public on their websites. Here are a few of them:

  • Nashville Songwriters Association International (NSAI)
  • Songwriters Guild of America
  • National Music Publishers Association
  • Association of Independent Music Publishers
  • AllTrack
  • ASCAP
  • BMI
  • SESAC
  • Global Music Rights
  • The Harry Fox Agency (HFA)
  • SoundExchange
  • Music Business Association
  • The Recording Academy
  • United States Copyright Office
  • CISAC
  • CISAC Member Societies
What is an ISWC?

Please see our Know Your Identifiers webpage for the answer.

What is an IPI?

Please see our Know Your Identifiers webpage for the answer.

What is an ISRC?

Please see our Know Your Identifiers webpage for the answer.

What is an ISNI?

Please see our Know Your Identifiers webpage for the answer.

What is an IPN?

Please see our Know Your Identifiers webpage for the answer.

What does it mean for a musical work to be in the public domain?

A musical work is in the public domain if it is no longer under copyright protection or if it failed to meet the requirements for copyright protection. Works in the public domain may be used freely without the permission of the former copyright owner. Musical works in the public domain may be reproduced and distributed as a phonorecord without the need for mechanical licenses and royalties. Determining if a musical work is in the public domain is often complicated. For help in finding the answer, explore these resources:

Copyright Office circular on the duration of copyright protection: https://www.copyright.gov/circs/circ15a.pdf

Public Domain Information Project: https://www.pdinfo.com/

What are unmatched or unclaimed royalties?

The MLC uses the term “unmatched royalties” to refer to royalties for musical works where The MLC has not yet matched the data for a particular sound recording use (reported by DSPs) to a musical work in The MLC’s musical works database.

The MLC uses the term “historical unmatched royalties” to refer to unmatched royalties that relate to uses of musical works prior to January 1, 2021. Click here to visit our dedicated Historical Unmatched Royalties page for more information.

The MLC uses the term “unclaimed royalties” to refer to royalties that it has been able to match to a musical work in its musical works database, but where less than 100% of the ownership shares for that matched musical work have been claimed by a Member of The MLC. For example, if only 80% of a matched musical work has been claimed, the remaining 20% is unclaimed, and The MLC refers to royalties associated with that unclaimed share as “unclaimed royalties.”

Categories:
The MLC Connect to Collect Music Industry Terminology Play Your Part
Royalty Payments Phono 3 Phono 4 Historical Unmatched: Impact of Prior Settlements
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The MLC Tools

The MLC offers a suite of tools to help you find, register, claim, and manage your musical works (aka song) data so you can collect the digital audio mechanical royalties you've earned. Whether you're a Member or simply checking song information, these tools make it easy to Play Your Part.

View MLC Tools
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Missing Member Lookup

Missing Member Lookup is a database of rightsholders that are not yet Members of The MLC who may be entitled to collect U.S. digital audio mechanical royalties. To see if The MLC may have royalties for you, enter your rightsholder information to search.

Find My Royalties

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News & Press Releases

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The MLC Launches Music Registration 101 Micro-Course Covering Copyright, Music Registration, and Royalties

May 4, 2026
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The MLC Seeking Suggestions for Board of Directors and Advisory Committee Candidates

April 2, 2026
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The MLC Announces Advisory Committee Updates

January 29, 2026
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Take Control of Your Songs: Introducing The MLC’s Songwriter Hub

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