Part of #2 Blocked by: #16, #7
In a patch document that has been published, the creator names collaborators and makes an invite link, as on the site, with the same limit of twelve. Only the creator publishes, and only the creator adds a sample: it is held on atmosynth.at until published, and everyone in the room hears it. A patch never published offers no room. A track's patch offers none (ADR 0019).