Back to Knowledge Base
📄Music Publishing

PRO vs MLC vs SoundExchange

Which royalty organization does what, where the money comes from, and how musicians should register songs and recordings.

11 minJuly 2026Intermediate
artistsongwriterproducermanager

Why This Matters

Most musicians lose money because they register in one place and assume the job is finished. A distributor can pay master recording income from Spotify or Apple Music, but that does not mean your songwriter royalties, mechanical royalties, or SoundExchange royalties are handled. A PRO, the MLC, SoundExchange, your distributor, and a publishing administrator can all touch different parts of the same release.

The practical goal is not to memorize acronyms. The goal is to know which rights you control, which organization collects each type of money, and what data each one needs.

The Short Version

  • PROs such as ASCAP, BMI, SESAC, or your local society collect public performance royalties for compositions.
  • The MLC administers U.S. digital mechanical royalties for eligible interactive streaming and download uses under the blanket license.
  • SoundExchange collects and distributes U.S. statutory digital performance royalties for eligible sound recordings, mainly non-interactive digital radio and satellite/cable-style uses.
  • Distributors deliver recordings to platforms and usually pay master-side streaming revenue from those platforms.
  • Publishing administrators can help collect publishing income that you do not want to administer yourself.

No single account replaces all the others.

Composition vs Recording

Before you register anywhere, separate two rights:

  • Composition: the song itself: melody, lyrics, and underlying musical work. Songwriters and publishers control this side.
  • Sound recording: the specific recorded version. The artist, label, or master owner controls this side.

PROs and the MLC mostly deal with the composition side. SoundExchange and distributors deal with the recording side. A self-releasing artist may control both, but the money still flows through different systems.

PROs

A PRO collects performance royalties when a composition is publicly performed. That includes radio, live venues, TV, many streaming uses, restaurants, bars, and other public uses. In the United States, the main PRO options are ASCAP, BMI, SESAC, and GMR. Outside the United States, each country has its own society or societies.

You normally register both a writer share and, if you self-publish, a publisher share. If you only register the writer side while you control publishing, you may leave publisher-share money harder to claim or delayed.

What to register:

  • song title and alternate titles
  • songwriter legal names and shares
  • publisher names and shares
  • performer or recording information where requested
  • ISWC or related identifiers if available

The MLC

The Mechanical Licensing Collective handles a specific job in the United States: administering the blanket mechanical license for eligible digital audio services. In plain English, the MLC helps route U.S. digital mechanical royalties for compositions when songs are streamed interactively or downloaded through covered services.

The MLC does not replace a PRO. Mechanical royalties and performance royalties are different composition royalties. Many songs need both PRO registration and MLC registration.

The MLC is most relevant when:

  • you write or publish songs
  • you self-administer your publishing
  • you need to claim unmatched or unpaid mechanical royalties
  • your publishing administrator is not already handling the works

SoundExchange

SoundExchange is about the sound recording, not the composition. It collects and distributes statutory digital performance royalties for eligible sound recordings, including certain non-interactive digital radio, satellite radio, and cable music services.

This is different from distributor income. Your distributor may pay master royalties from interactive streaming platforms. SoundExchange is a separate collection path for eligible statutory uses.

SoundExchange also separates shares by role. Featured artists, rights owners, and non-featured performers can have different payment paths.

Where Distributors Fit

A distributor delivers your recordings and metadata to platforms. It usually pays you master-side income from stores and streaming services according to your distributor agreement. It may offer optional services like YouTube Content ID, sync pitching, neighboring rights, or publishing administration, but those are add-ons and terms vary.

Do not assume your distributor registers your compositions with your PRO, the MLC, or SoundExchange unless the service explicitly says so and you have enabled that service.

What To Do Next

  1. Make a song-by-song spreadsheet with title, ISRC, UPC, writers, splits, publishers, master owner, distributor, and release date.
  2. Register each composition with the correct PRO or local society.
  3. Register controlled U.S. digital mechanical works with the MLC or confirm your publisher/admin is doing it.
  4. Register eligible recordings and performer/rights-owner shares with SoundExchange.
  5. Check your distributor dashboard for payout settings, ISRCs, credits, and metadata consistency.
  6. Schedule a monthly review for unmatched works, missing registrations, and payout anomalies.

Common Mistakes

  • Registering with a PRO and assuming the MLC is covered.
  • Uploading through a distributor and assuming publishing royalties are covered.
  • Ignoring SoundExchange because the recording is already on Spotify or Apple Music.
  • Using different writer names, publisher names, or splits across systems.
  • Waiting until a song earns money before cleaning up ownership records.

When To Get Help

If you have multiple writers, disputed splits, label involvement, inherited catalog, international income, or meaningful revenue, ask a music attorney, publishing administrator, or experienced royalty professional to review your setup. The goal is not just registration. The goal is registration that matches the legal ownership of the work.

Continue With A Workflow

Use this guide inside a step-by-step path with tools, records to gather, and next actions.

View all workflows

Key Takeaways

  • PROs, the MLC, SoundExchange, distributors, and publishing administrators handle different rights and royalty streams.
  • A composition and a sound recording can earn money through separate systems even when one artist controls both.
  • Registering in only one place often leaves other royalty paths incomplete.

Action Checklist

  • Map every song by composition owner, master owner, writers, publishers, ISRC, UPC, and distributor.
  • Register compositions with the correct PRO or local society and the MLC where applicable.
  • Register eligible sound recordings and performer shares with SoundExchange.
  • Check distributor metadata and payout settings separately from publishing registrations.

Common Pitfalls

  • Assuming a distributor collects publishing royalties automatically.
  • Registering with a PRO and forgetting U.S. digital mechanical royalties through the MLC.
  • Ignoring SoundExchange because the song is already on interactive streaming platforms.