ISWC (International Standard Musical Work Code) is the international identifier assigned to a musical composition — lyrics and melody. While ISRC identifies the sound recording, ISWC identifies the work itself (the publishing side).

ISRC vs ISWC

CodeIdentifiesUsed By
ISRCSound recording (master)Artist, label, distributor
ISWCComposition (lyrics+melody)Songwriter, publisher
UPC/EANRelease (album/single)Label, distributor

How to Get an ISWC

ISWC is automatically assigned when you register your work through your PRO (e.g. MESAM in Turkey, ASCAP/BMI/SESAC in the US). Entering correct work information in your SOOLY Music distribution panel helps ensure accurate royalty tracking.