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Chapter 3

CMOs & Royalties

How Collective Management Organisations work, what they collect, and why every composer needs to register

What is a CMO — and Why Do They Exist?

Imagine trying to personally track every single performance of your music across the world — every concert, every radio broadcast, every streaming play, every background music use in a restaurant. Then imagine negotiating a payment for each one individually. It would be impossible for a single composer, and equally impossible for individual concert halls or broadcasters to negotiate with every composer whose music they use.

This is exactly the problem that Collective Management Organisations (CMOs) — also called collecting societies or Performing Rights Organisations (PROs) — were created to solve. A CMO pools together the rights of thousands of composers and publishers, issues licences collectively to music users (broadcasters, streaming services, venues, shops), and then distributes the collected royalties back to rights holders.

For you as a composer, this system means: you register once with your CMO, and from that point forward, the CMO works on your behalf around the clock and around the world — collecting money that you are legally entitled to, that you would otherwise never see.

How the System Works (step by step)
1

A concert hall, radio station, or streaming service wants to use music. They pay a licence fee to the CMO (often a blanket licence covering all CMO-registered works).

2

The CMO collects all these fees from thousands of music users simultaneously.

3

Usage is tracked through concert reports, broadcaster playlists, streaming data, and audio monitoring technology.

4

The CMO calculates what portion of the total collected money is attributable to each registered work.

5

Royalties are distributed to members — typically every three to six months.

The Cost of Not Registering
When your music is performed or broadcast, the venue or broadcaster pays a licence fee to the CMO regardless of whether you are registered. That money is collected. But if you are not a CMO member with your works properly registered, the CMO has no way to identify you as the composer — and the money is either held in an undistributed pool or distributed to other members. You are legally entitled to this money. Registering is the only way to claim it.

BUMA & STEMRA: The Dutch System in Detail

For Dutch-based composers, the two primary CMOs are BUMA and STEMRA. Although they are separate organisations in terms of the rights they manage, they are both administered by the same entity — Buma/Stemra BV — and you generally register with both at the same time through one process.

BUMA
Public Performance & Broadcasting Rights

BUMA collects royalties whenever music is performed or communicated to the public:

  • • Live concert performances in all venues
  • • Radio and television broadcasting (national and regional)
  • • Public streaming (music played in shops, cafés, hotels)
  • • Online streaming platforms (Spotify, Apple Music, etc.)
  • • Cinema film screenings with music
  • • Live events and festivals
STEMRA
Mechanical & Reproduction Rights

STEMRA collects royalties whenever music is reproduced — recorded and duplicated in any form:

  • • CD and vinyl production and sales
  • • Digital download sales (iTunes, Bandcamp)
  • • On-demand streaming (each stream is a mechanical reproduction)
  • • Music in video games and interactive media
  • • Ringtones, apps, and digital products
  • • DVDs and Blu-ray releases with music
Buma's Organisation

Buma is a membership association (vereniging) with approximately 26,000 personal members (composers, lyricists) and 1,300 publisher members. Two 'wings' (geledingen): authors and publishers.

Governance
  • ALV (General Members' Meeting) — highest authority
  • RvT (Supervisory Board) — 9 members incl. 4 composers, 2 publishers
  • Raad van Rechthebbenden — advises management
  • • Repartition Committee — monitors fairness of distributions
Licensing Types
  • Blanket licence — flat fee or % of income (radio/TV)
  • • One-off licences for festivals and events
  • • Theatre, cinema, and classical ensemble licences
  • • Collective licences with amateur associations (hafabra, choirs)
  • • Sector deals (hospitality, retail) via trade associations

Standard licence rate: 7% of concert box-office income (minimum 80% protected repertoire on the programme).

How Buma Tracks Repertoire (Garing)

Linking collected money to specific works is called garing. It happens in two ways:

🔊 Automatic (Fingerprinting)

Every registered soundfile is 'fingerprinted' — its unique audio DNA is extracted. The company Soundaware scans all major radio and TV broadcasts and matches them against registered fingerprints. The DJ Monitor system does the same for live dance events.

📋 Manual (Setlists & Cuesheets)

For live performances, bands submit setlists via the Buma website or app. Films and commercials use cuesheets (exchanged internationally). Classical concerts submit programme reports directly. As a composer, always ensure your performances are reported!

Buma Repartition: How Your Money Is Distributed
~9%
Total cost percentage (operational costs offset by investment income)
8%
Deducted for social & cultural purposes (max. 10% allowed)
<9 mo
Required by CvTA: repartition within 9 months of collection

The social & cultural deduction funds: composer/publisher pensions, the Sociaal Fonds Buma, professional association subsidies, and cultural events like Noorderslag and Amsterdam Dance Event. The split between social and cultural purposes is approximately 50:50.

Stemra: Mechanical Rights in Detail
Physical carriers (CD, vinyl, DVD, USB): Two licence types: fixed fee per unit (loonpersing), or BIEM contract (% of p.p.d. — the dealer price label receives). Audio: ~9% p.p.d.; AV: ~6% p.p.d.
Broadcast mechanical (radio/TV): Broadcasters pay for all recordings used in programmes and for stored copies used in repeat broadcasts. Once a major income stream; now hollowed out by changes in storage technology.
Online mechanical: Both streaming and downloading involve mechanical rights. Central licensing allows one EU-wide contract via Stemra for label/producer who reports per-country sales.
Multi-territorial licensing: Buma and Stemra now issue online licences covering territories beyond the Netherlands — including worldwide. A growing development for the digital market.

Stemra normal split (works registered after 1 January 2019): 1/3 publisher — 2/3 author for all works (including instrumental). Earlier works: 50% publisher for instrumental; 33.3% for works with text.

SENA — Don't Forget Neighbouring Rights
SENA (Stichting exploitatie naburig auteursrecht) handles neighbouring rights for performers and record producers — established by law in 1993. As a composer, your compositional copyright is handled by BUMA/Stemra. But if you are also a performer on your own recordings, you also have neighbouring rights managed by SENA. Important: SENA has no mandate for on-demand streaming (Spotify, Apple Music etc.) — those streaming master royalties are licensed directly by labels/producers. SENA covers radio/TV broadcasts, background music (hospitality, retail), and internet radio. In hospitality and retail, SENA and Buma issue a joint invoice via SCAN — a one-stop licence for music users.
How to Register with BUMA/Stemra
  1. Visit bumastemra.nl and create a member account (free of charge)
  2. Complete the membership application — personal details, composer status, bank account
  3. Register each work in the online catalogue with: title, instrumentation, duration, co-composer shares, publisher details, and a soundfile (mandatory for media music; needed for fingerprinting)
  4. Works are registered via ICE — a shared database platform run by PRS, STIM, and GEMA (with Buma as partner). This means your work only needs to be registered once for all partner CMOs.
  5. Your work receives an ISWC code — the unique international work identifier used by all CMOs worldwide
  6. Royalties collected for registered works are paid into your account at each distribution cycle

How Streaming Royalties Are Split: Mechanical vs Performance Rights

When a listener plays your music on Spotify, Apple Music, or any other streaming service, the platform pays out royalties that are divided into two fundamentally different rights categories: a mechanical royalty (for reproducing the work) and a performance royalty (for communicating it to the public). Understanding this split is essential — each stream you receive is essentially two separate payments travelling through two entirely different pipelines.

Buma/Stemra Online Allocation: The 75/25 Rule

Each stream is simultaneously a performance (communicating the work to the public) and a mechanical act (reproducing it). Buma/Stemra must therefore divide the online royalty between its two organisations. For streaming, it allocates 75% to performance (Buma) and 25% to mechanical (Stemra). For downloads, the split is reversed: 75% mechanical (Stemra) and 25% performance (Buma) — because a download is primarily a reproduction, not a communication to the public.

This is one of the most complicated aspects of the entire royalty system: the same online play generates two different rights, split differently depending on whether it is streamed or downloaded, and paid out by two different organisations on two different timelines.

One Spotify Stream → How the Money Flows
Based on ~$0.004 per stream (illustrative)
🎵 Spotify total payout: 100%
Note: This 100% is what Spotify pays out to rightsholders — but it is itself only around 70% of what a stream earned. Spotify keeps approximately 30% of gross stream revenue for itself before any royalty is calculated. So a stream that generates €0.004 from a listener's subscription sends roughly €0.0028 into this 100% pool, which is then divided as shown below. (This is the same split revisited in Chapter 7 · Record Labels, where the label–artist side of the master share is explained.)
🎙️ Master Recording
~80%

Goes to the owner of the recording (label, distributor, or self-releasing artist)

Record Label
Majority share (contract dependent)
Artist / Performer
Royalty rate per recording contract
Distributor
~5–15% of master payout

Not managed by CMOs. Managed via SENA (NL) for neighbouring rights.

📝 Publishing
~20%

Goes to the owners of the composition (composer + publisher)

The ~20% Publishing share is split into two rights types:
⚙️ Mechanical Rights
~50% of the publishing share
"Reproducing the composition as an audio file"
Collected by: STEMRA (NL) · MLC (US) · Harry Fox · etc.
Then split between:
Composer 50%
Writer share
Publisher 50%
Publisher share

Self-published? You keep both shares.

📢 Performance Rights
~50% of the publishing share
"Communicating the composition to the public"
Collected by: BUMA (NL) · PRS (UK) · GEMA (DE) · ASCAP/BMI (US)
Then split between:
Composer 50%
Writer share
Publisher 50%
Publisher share

Self-published? You keep both shares.

Why Two Separate Pipelines?
Mechanical and performance royalties flow through entirely different organisations and arrive on different timelines. Mechanical royalties from streaming (via STEMRA/MMA) may arrive months before or after performance royalties (via BUMA). Always check both your BUMA and STEMRA portals to ensure you are receiving both income streams from streaming.
The US Is Different
In the United States, streaming mechanical royalties are collected by the Mechanical Licensing Collective (MLC), not by ASCAP or BMI (which only handle performance rights). This split organisation model is unique to the US. Many composers with US streams leave MLC mechanical royalties unclaimed — register at themlc.com if you have significant US streaming activity.
What This Means for You as a Composer

Every stream triggers two royalty payments. If only one is arriving, something is wrong with your registration.

If you have a publisher, the publisher's 50% share (both mechanical and performance) is defined in your publishing contract. Always check what percentage of the publisher share is passed through to you.

If you self-publish, you collect both the writer share and the publisher share — but you must actively register as a publisher with both BUMA and STEMRA to claim this.

The master recording royalty is entirely separate and not managed by CMOs at all — it belongs to whoever owns the recording (label, distributor, or you).

Major CMOs Worldwide

Thanks to a network of reciprocal agreements between CMOs, when you register with BUMA/Stemra, you are effectively enrolling in a global collection system. Every major CMO in the world has a bilateral agreement with BUMA/Stemra to collect on their behalf and transfer the money home. Here is an overview of the key organisations:

OrganisationCountryFocusScale
BUMA/STEMRANetherlands 🇳🇱Public performance (BUMA) + mechanical rights (STEMRA)~€2–5 per minute of broadcast; varies per medium
PRS for MusicUnited Kingdom 🇬🇧Combined PRO for composers, lyricists, publishers£1.3 billion distributed annually (2022)
GEMAGermany 🇩🇪Performance, broadcast, mechanical, online rights~€1.1 billion per year
SACEMFrance 🇫🇷All categories of rights management~€1.5 billion per year
ASCAP / BMI / SESACUnited States 🇺🇸Performance rights (US has separate mechanical MROs)ASCAP: $1.6B; BMI: $1.57B annually
SOCANCanada 🇨🇦Public performance and communication rights~CAD $400 million annually
APRA AMCOSAustralia 🇦🇺Performance and mechanical rights combined~AUD $600 million annually
SENANetherlands 🇳🇱Neighbouring rights for performers and producersSeparate from BUMA; covers recordings
How Reciprocal Agreements Work in Practice
Imagine your string quartet is performed at the Wigmore Hall in London. The Wigmore Hall holds a blanket licence with PRS for Music. PRS collects the relevant royalty, identifies the work as registered with BUMA/Stemra (via the ISWC code), and transfers the money to BUMA/Stemra under the reciprocal agreement. BUMA/Stemra then distributes it to you at the next payment cycle. This process happens automatically — you don't need to do anything once your works are registered. The system typically takes 6–18 months from performance to payment.

How Royalties Are Calculated

A question composers frequently ask is: "How much will I actually receive?" The honest answer is that CMO royalty calculations are complex and vary significantly by territory, medium, and usage type. However, understanding the general principles helps you set realistic expectations and identify when you might be receiving less than you should.

1
Reporting & Monitoring

Broadcasters, streaming services, and concert venues report what music they use. Most streaming platforms (Spotify, Apple Music) provide detailed play-by-play data. For live performances, reporting depends on the venue submitting a programme — which is why it's important to ensure performances are reported. CMOs also use audio fingerprinting technology to monitor broadcasts automatically.

2
Weighting & Valuation

Not all plays are worth the same amount. A primetime national television broadcast of a 10-minute orchestral work pays vastly more than a community radio play of the same work. The key factors are: broadcast medium (TV > radio > streaming), time slot (prime time vs overnight), audience size, work duration, and territory.

3
The Writer/Publisher Split

Royalties are typically divided between the composer (writer share: 50%) and the publisher (publisher share: 50%). Some CMOs pay both shares directly to the composer if no publisher is involved. If you have a publisher, your contract should specify how much of the publisher share is passed through to you — this varies and is a key contract negotiation point.

4
Distribution Cycles

Most CMOs distribute royalties quarterly or semi-annually. There is an inherent time lag in the system — typically 6–18 months between a performance occurring and you receiving payment. This is simply the time it takes for usage reports to be processed, matched to works, and calculations finalised.

5
Administrative Deduction

CMOs retain a percentage of collected revenue to fund their operations — typically between 10% and 25%, depending on the CMO and the type of rights. This is standard and unavoidable. BUMA/Stemra publishes its distribution rules and deduction rates annually; you can check these on their website.

Classical Music & CMO Royalties — Realistic Expectations
Contemporary classical music generates lower CMO royalties per work than pop music, simply because it is performed and broadcast less frequently. A single top-40 pop song may generate thousands of plays per year on national radio; your new string quartet may receive two or three performances at specialist venues. However, prestigious broadcasts (national radio premieres, international radio), major orchestra performances, and television broadcasts can yield meaningful royalties — especially if the work is performed repeatedly over many years. The cumulative value of a strong catalogue grows significantly over time.
Practical Example: What Might You Earn?

These are approximate figures for the Netherlands (BUMA) — actual amounts vary considerably:

  • National radio broadcast (NPO Radio 4), 10-minute work: approximately €80–150
  • Live concert at major Dutch venue (reported programme): approximately €30–80
  • Streaming (Spotify, 1,000 plays of a 10-minute work): approximately €3–10
  • International radio broadcast (BBC Radio 3, 10-minute work): approximately €100–200 (via PRS reciprocal payment)

These figures are illustrative only. A work performed and broadcast 20–30 times per year across multiple territories can generate several hundred to a few thousand euros annually.

NORMA and Other Dutch CMOs

Beyond Buma/Stemra and SENA, several other Dutch collective management organisations are relevant to composers and publishers:

NORMA
Stichting Naburige Rechtenorganisatie voor Musici en Acteurs

NORMA represents all performing artists — including actors. Its primary task is collecting and distributing collective remuneration: cable, home copying (thuiskopie), and lending right (leenrecht) income.

When do you receive NORMA income vs SENA income?

  • • A released recording broadcast on TV → via SENA
  • • A live performance recorded and broadcast on TV → via NORMA (you are treated as an 'actor' in that context)
  • • Soundtracks/leaders composed and performed for films/series → via NORMA
  • • Archive footage of a TV performance broadcast again → via NORMA
Register with both SENA and NORMA
Membership in both organisations is free. As a performing composer, joining both ensures you claim all income streams you are entitled to.
Stichting Thuiskopie

Levies on devices sold in the Netherlands (audio equipment, USB sticks, computers) that can be used to copy music. Collected by this foundation and distributed to Buma, Stemra, and SENA according to fixed split keys.

Stichting Leenrecht

Collects lending fees from public libraries (per borrowed copy of books and recordings). Distributes to FEMU, Stemra, and SENA. Composers and publishers receive a share for scores and recordings that are lent.

Stichting Reprorecht & FEMU

Reprorecht collects photocopying levies from government, education, and businesses. About 2% of annual income covers sheet music use — paid to FEMU for distribution. FEMU also licenses websites, karaoke, and anthologies that use music notation or lyrics.

CvTA: Independent Oversight of Dutch CMOs

Because each CMO is effectively a legal monopoly or cartel — music users have nowhere else to go — Dutch CMOs operate under statutory government supervision by the CvTA (College van Toezicht Auteursrechten), the Dutch Copyright Supervision Authority.

What CvTA Supervises
  • • Statutes and governance structures
  • • Handling of complaints and disputes
  • • Remuneration of directors
  • • Business operations and cost levels
  • • Almost all board decisions (including ALV resolutions) require CvTA approval before taking effect
Key Rules CvTA Enforces
  • • CMOs may not spend more than 15% on operational costs — exceeding this requires explanation, and repeated violations can lead to fines
  • • Collected royalties must normally be distributed within 9 months of collection
  • • Complaints must be resolved within 6 months (max. 3 years)
  • • CvTA is funded by the CMOs themselves (i.e. from composer/publisher income)
Why This Matters for Composers
The CvTA exists to protect you. If you believe Buma/Stemra is distributing funds incorrectly, failing to collect for your works, or imposing unreasonable conditions, you can escalate to the CvTA. Individually, composers have limited bargaining power against large CMOs — the CvTA provides an independent check on how your collective money is managed.

Grand Rights: The Exception to the CMO System

There is one important category of rights that falls entirely outside the CMO system: grand rights (also called dramatic rights). Understanding this distinction is important, especially for composers working in opera, music theatre, or ballet.

What are Grand Rights?

Grand rights (also called dramatic rights) cover the use of music in staged dramatic works — opera, musical theatre, ballet with narrative, and song-cycle dramatisations. The key distinction is that the music is used in the context of a dramatic story, with sets, costumes, and staging. These are NOT administered by CMOs and must be licensed directly.

Why Don't CMOs Handle Grand Rights?

Standard CMO blanket licences are designed for simple, repeated uses — a song played on the radio thousands of times. Grand rights performances are complex individual events involving significant fees. Licence costs depend on the prestige and size of the venue, number of performances, ticket prices, repertoire duration, and whether the work is a world premiere.

Who Negotiates Grand Rights?

Publishers like Donemus handle grand rights negotiations on behalf of their composers. This is one of the key advantages of having a professional publisher — they have existing relationships with opera houses, theatre companies, and festivals, and understand how to price and structure these deals. Self-published composers must negotiate directly.

What Kind of Revenue Can Grand Rights Generate?

Grand rights fees for major works at prestigious venues can be very substantial — a premiere of a new opera at a national opera house can generate thousands of euros in licencing fees alone, plus subsequent performances. For smaller staged works, fees are proportionate. Always ensure grand rights are clearly addressed in your publishing contract.

Small Rights vs Grand Rights: How to Tell the Difference
The distinction is not always obvious. A song cycle performed in concert by a singer and pianist is generally small rights (administered by CMO) — even if the songs tell a story. The same song cycle performed as part of a staged production with costumes, sets, and dramatic direction becomes grand rights. When in doubt, consult your publisher or CMO. Getting this wrong — for example, assuming your CMO covers a staged performance when it doesn't — can result in performing an unlicensed work.

Practical Action Plan: Maximising Your CMO Income

Essential Steps — Do This Now
  1. Register as a member of BUMA/Stemra (Netherlands) or your country's equivalent CMO
  2. Register every work you have composed in the CMO catalogue — even older works
  3. Ensure each work receives an ISWC (International Standard Work Code)
  4. If you perform on your own recordings, consider SENA membership for neighbouring rights
  5. Verify with your publisher what share registration they have done on your behalf
  6. Log in to your CMO member portal and check your statement at each distribution cycle
Ongoing Best Practices
  • • Report every live concert performance to your CMO — use the online reporting form and submit promptly after the event
  • • Ask concert organisers to submit their own programme reports (most major venues do this automatically, but smaller venues may not)
  • • Search your CMO's online portal for unmatched or unclaimed royalties
  • • When you sign a recording deal, ensure the label registers the recording properly with STEMRA and SENA
  • • Keep your contact details and bank account up to date with your CMO to avoid payment delays
  • • Review your CMO statements carefully — errors in work registration or performance matching do occur and can be corrected

How Do European CMOs Compare? Insights from Berenschot (2025)

A 2025 whitepaper by management consultancy Berenschot"Who gets paid when the music plays?" — provides the most recent comparative analysis of royalty collection and distribution across the top-15 European CMOs. The findings are striking: there are enormous differences in how efficiently CMOs collect and distribute royalties, even within similarly wealthy countries.

€8.1B
European recorded music revenue (2024)
69%
Global music revenue from streaming (2024)
+56.9%
Untapped royalty potential if all CMOs matched Denmark's KODA
€4B
Estimated uncollected royalties in Europe (2024)
Understanding the Distribution Ratio (DR)

Berenschot introduces a key metric called the Distribution Ratio: the percentage of royalties collected in a given year that is actually paid out to member composers. A higher ratio means more of the money ends up in composers' pockets.

DR = (Total royalty payout to members / Total royalties collected from users) × 100%

Note: A DR above 100% can occur when a CMO distributes royalties collected in previous years (as seen in Austria and Poland).

Top European CMOs — Key Figures (2024)
Country / CMOTotal collectedOnline shareCMO costsDistribution Ratio
🇫🇷 France · SACEM€1,601M40.6%10.6%81.3%
🇬🇧 UK · PRS€1,371M33.6%12.0%87.9%
🇩🇪 Germany · GEMA€1,332M23.3%14.9%83.0%
🇳🇱 Netherlands · BumaStemra€313M25.1%13.3%78.3%
🇸🇪 Sweden · STIM€291M36.5%11.0%86.2%
🇩🇰 Denmark · KODA ★€183M34.3%10.9%90.7%

Source: Berenschot (2025), based on 2024 CMO annual reports. ★ = European benchmark for royalty collection per capita.

Key Challenges CMOs Face in the Digital Age
Delayed payouts: CMOs like PRS (UK) acknowledge significant delays between when royalties are collected and when they reach composers — creating financial strain for creators.
Non-allocated royalties: Large sums remain undistributed because the rightful claimant cannot be identified. BumaStemra's 2024 annual report shows an increase in unallocated royalties compared to the previous year — a direct cost to unregistered or poorly documented composers.
International coordination gaps: Royalties for music consumed abroad are particularly difficult to track. CISAC reports that inadequate data exchange between CMOs often leads to lost international income.
Online royalty collection disparities: France (41% of royalties from online sources) and Sweden (37%) are far ahead of the Netherlands (25%) and Germany (23%). Countries lagging in online collection are leaving significant digital revenue uncaptured.
What Can You Do as a Composer?
The Berenschot research makes clear that the system is imperfect — but composers who are proactive do better. Registering all your works thoroughly, reporting performances promptly, and periodically checking your CMO portal for unmatched royalties are the practical steps that put you ahead of those who rely passively on the system.
B
Source: Steenbrink, R., Van Pijkeren, J. & Flikkema, M. (2025). Who gets paid when the music plays? A comparative analysis of royalty collection and distribution by European CMOs. Berenschot Groep B.V.

The Metadata Gap: Why Royalties Go Uncollected

Even when your works are registered with a CMO, royalties can still fail to reach you — not because the system doesn't collect the money, but because of broken links in the metadata chain. A 2024 UK IPO report on music streaming metadata, based on interviews with 96 industry stakeholders across labels, publishers, CMOs, distributors, and DSPs, reveals the scale of this problem.

<0.1%
of recordings arrive at DSPs linked to an ISWC (musical work code)
~20%
global ISWC coverage — despite 97% ISRC coverage
~100%
of new recordings at one DSP arrive with incomplete or inaccurate metadata
50%
of works in some CMO databases lack an ISWC entirely
The Key Identifiers — and Why They Break Down

The music industry uses several international identifier codes to link recordings to works and people. When these are missing or mismatched, royalties end up unallocated or delayed.

ISWCInternational Standard Works Code
What it does

Identifies the musical composition (your score). CMOs use this to match streams to your work and calculate royalty payments.

Common problem

Frequently absent at the time of release. The ISWC is often only assigned after a recording has already been delivered to streaming platforms — meaning royalties accumulate without a link to the correct work.

ISRCInternational Standard Recording Code
What it does

Identifies the sound recording (the audio file). Labels assign this and deliver it to DSPs with the release.

Common problem

Duplicate ISRCs are common (4–23% of recordings at DSPs have duplicates). When a label acquires a catalogue, new ISRCs are sometimes incorrectly issued for the same recording, breaking the link to existing royalty history.

IPIInterested Party Information number
What it does

Identifies individual composers and publishers within the CMO database. Required for ISWC allocation and royalty matching.

Common problem

Most labels have zero IPI numbers in their systems. Labels cannot access the IPI database. This means the link between a recording and its composer is often just a name — which breaks when names are misspelled, use pseudonyms, or are shared by multiple people.

IPNInternational Performer Number
What it does

Identifies performing artists for neighbouring rights (SENA) purposes.

Common problem

Rarely included in metadata delivered to DSPs — only present in around 1% of recordings at some platforms. Session musicians especially are often uncredited in digital metadata.

Classical Music: A Specific Metadata Problem

The ISRC standard does not include a dedicated "composer" or "writer" field — and it does not link to ISWC codes. Much classical music has no distinct or descriptive title (e.g. Symphony No. 4), making identification almost entirely dependent on the composer name being correct and present. Because composer names don't fit neatly into standard metadata fields, composers are often listed as "artists" — which is inaccurate and complicates CMO matching. This is identified in the IPO report as a structural gap specifically affecting contemporary classical music.

Additionally, classical releases often have complex contributor structures — one track may involve a composer, arranger, conductor, orchestra, and multiple soloists — which most metadata templates are not designed to handle accurately.

What Happens When Metadata Is Broken
Delayed payment

The average delay between a recording appearing on a DSP and the publishing industry identifying the musical work is 3–6 months. If the ISWC is not linked on delivery, CMOs cannot process claims until after that window — sometimes years later.

💰
Unclaimed royalties (black box)

When writer splits are disputed or incomplete at the time of streaming, royalties accumulate in an undistributed pool. These 'black box' funds may eventually be distributed by market share — meaning they go to the most-streamed artists, not necessarily to you.

🎭
Wrong party gets paid

Without IPI-linked composer identification, CMOs and DSPs can accidentally link a recording to a differently-spelled version of your name (a 'ghost account') — directing your royalties to an unlinked account that can't reach you.

📋
Lost credit and career impact

Credits on streaming platforms are linked to the same metadata. Missing or wrong composer credits also affect eligibility for awards (Grammy, Britt), which in turn affects future commissions and opportunities.

What Composers Can Do
The IPO report's core finding is that the best-protected composers are those who act early and stay proactive. Specifically: (1) Register your works with Buma/Stemra before a recording is released, so the ISWC is available from day one. (2) Ensure the label or distributor releasing a recording of your work has your correct ISWC and IPI number — provide these in writing at the point of delivery. (3) Know your IPI number and share it with collaborators, labels, and producers. (4) Check your CMO member portal for unmatched or unclaimed royalties regularly, especially 6–12 months after a release. (5) If you are working with a DIY aggregator (DistroKid, TuneCore, etc.), understand that these platforms perform minimal metadata vetting — the responsibility for complete and accurate metadata rests with you.
IPO
Source: Collopy, D. & Mulvee, K. (2024–2025). Music Streaming Metadata KPI Project: Interview Findings and Volumetric Analysis. Commissioned by the UK Intellectual Property Office (IPO) / Technical Solutions Group (TSG). Based on interviews with 96 industry stakeholders across creators, labels, CMOs, publishers, distributors, aggregators, and DSPs.
Color Guide

Coloured boxes throughout the chapters carry consistent meaning:

Info
Neutral context
Warning
Caution — don't skip
Success
Do this
Tip
Practical advice
Global
International / cross-border
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