Publisher's share
Historically, 50% of the total royalties generated by a composition, with the other 50% going to the songwriter (writer's share). In practice, through co-publishing deals, songwriters may retain part of the publisher's share. The split varies by contract.
Articles about Publisher's share
Songwriting Camp & Co-Writing Etiquette: How to Get Invited Back
Songwriting camps separate career writers from hobbyists faster than talent alone. The difference is not who writes the best hook but who understands co-writing etiquette well enough to get invited back.

LOMO: What to Know Before Signing with Songtrust
LOMO agreements transfer publishing rights for the entire life of copyright, not a fixed term. Before signing with Songtrust or any publisher offering LOMO terms, songwriters need to understand exactly what rights they're assigning, whether reversion is possible, and how these deals compare to standard publishing contracts.

Publishing Glossary Music Terms: Every Term Independent Artists Need to Know
Music publishing terminology is deliberately opaque, designed by an industry that profits from confusion. This glossary translates the language of royalties, rights, and revenue streams into plain terms independent artists can use to get paid correctly.

Does DistroKid Collect All Your Mechanical Royalties?
DistroKid collects some, but not all, of your mechanical royalties. This is the most direct answer, but it hides a more important truth for independent songwriters.