Welcome to the part where feelings meet paperwork. We explain rights without making your soul leave your body. Composition means the underlying song. Master means the recorded performance. PRO which is a performing rights organization collects public performance royalties. The MLC which is the Mechanical Licensing Collective handles certain digital mechanical royalties in the United States. ISRC is the code for a specific recording. UPC is the barcode for your release. We map money flow with arrows so you see who pays whom and when. You will learn how to register songs, draft split sheets, and avoid contracts that smell like trouble. Real life example. You co write a song, your friend records it, a YouTuber uses it, and a coffee shop plays it. We show where each penny comes from and how to claim it confidently.