SSP Reference
Music Rights & Royalties Glossary
The codes, royalties, and societies that decide who gets paid for a song — explained in plain English, from the people building the on-chain rails underneath them.
ISRC
International Standard Recording CodeA 12-character global identifier for a single sound recording — the fingerprint that follows a master through every DSP, society, and statement.
ISWC
International Standard Musical Work CodeThe ISO identifier for a musical composition — the song itself, separate from any recording of it.
Master vs. Composition
Two separate copyrights live inside every song: the recording (master) and the underlying work (composition). They generate different royalties and pay different people.
Split Sheet
The written agreement that records who owns what percentage of a song — songwriters, producers, featured artists. Without one, royalties get stuck.
Mechanical Royalty
The royalty owed to songwriters and publishers every time a composition is reproduced — physically, digitally, or via on-demand streaming.
Neighboring Rights
Royalties paid to performers and master owners when a recording is publicly broadcast or performed — radio, TV, public venues, satellite, webcasters.
PRO
Performance Rights OrganizationAn organization that licenses public-performance rights on behalf of songwriters and publishers, then collects and distributes the resulting royalties.
The MLC
Mechanical Licensing CollectiveThe US non-profit created by the Music Modernization Act to collect and distribute streaming mechanical royalties to songwriters and publishers.
SoundExchange
The US organization that collects digital-radio neighboring-rights royalties for master owners and featured performers.
Sync License
The license required to pair a piece of music with visual media — film, TV, ads, games, social platforms.
Need a split sheet?
Use the free SSP split-sheet tool — validates shares, exports JSON, and (optionally) attaches to a stamped master.
Open split-sheet tool