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How to Join

An illustration of three musicians — a flautist, a drummer, and a saxophonist — performing live, with colourful sonic waves flowing from their instruments into a microphone on a stand.

Contributing to CORPUS means keeping ownership of your work and participating as a co-owner of the system it helps build. The relationship is licensing-based, not buy-out; tied to ongoing model usage, not paid per play; entered only with explicit consent. Royalties follow downstream model usage; CRPS accumulate as a lasting stake in the corpus itself.

The public beta opened in April 2026. New contributors are onboarded in waves with human review between each wave — the quality of the dataset is bounded by the quality of the contributor base, so we grow on purpose. This page covers who can join and how. Upload mechanics are in The Contribution Process.

Two ways in​

The contribution app at app.corpus.music distinguishes between visitors and contributors.

  • Visitors create an account, upload tracks, and see them run through the full annotation pipeline. Their uploads do not enter the library and are not used for training — this path exists so anyone curious about the system can experience it before committing.
  • Contributors are vetted accounts whose uploads enter the library and become eligible for scoring, royalties, and CRPS. The transition from visitor to contributor requires a short review on our side.

Both modes use the same app. The difference is what happens after upload.

Becoming a contributor​

We deliberately limit who joins as a contributor. Open registration with retroactive moderation is the model that produced the content crisis on every major music platform. We would rather grow slower and keep the library defensible.

The application happens inside the app. After signing up as a visitor, open Become a Contributor from your dashboard. The questionnaire asks for:

  • About you. Name, email, city and country.
  • Musical background. The cultural influences that shape your work, one or more links to your existing presence (Bandcamp, SoundCloud, Spotify, personal portfolio), years of experience, and the genres or styles you mainly work in.
  • Role and identity. Whether you write, perform, produce, design sound, or some combination. What kind of artist you describe yourself as. Which fields you work in (film, games, advertising, theatre, and so on).
  • Rights management. Whether you are a member of a rights organisation (GEMA, SACEM, ASCAP, PRS), and your IPI Name Number if so.
  • Your tracks. Between one and five tracks you consider representative.

A CORPUS admin reviews each submission against the linked profiles; you are notified in the app once a decision has been made. Rejections include a short reason where possible, and you can submit a new application.

Once approved, see The Contribution Process for what to settle before your first upload.

Licensing during the beta​

Beta contributions enter under provisional, non-commercial terms: internal training for research, prototypes, and partner demos, but no public release of trained models. Contributor data never becomes platform-owned. When commercial licenses are finalised, contributors opt in explicitly per contribution; until then you can withdraw at any time.

Channels​

If you represent a label, a publisher, or a catalogue, the contributor flow is the wrong door — write to hello@corpus.music and we will route you to the catalogue conversation.