Public domain
Works that are no longer protected by copyright (or were never protected) and can be used freely without permission or payment. Compositions typically enter the public domain 70 years after the death of the last surviving author in most jurisdictions.
Artículos sobre Public domain

Music Copyright vs Trademark: What's the Difference and Do You Need Both?
Confused about music copyright vs trademark and which one you actually need? This article cuts through the overlap and explains what each protects, how registration works, typical costs and timelines, and the real-world consequences for streaming, sync and merchandise.

How to Register Your Songs With a Performing Rights Organization Step by Step
Knowing how to register songs with a PRO is the single most effective step an independent writer can take to start collecting public performance royalties . This concise, step-by-step guide shows exactly what metadata to gather, how to set writer and publisher splits, when to register recordings with SoundExchange or neighbor rights societies, and how to verify and correct registrations so you do not lose revenue.