[miunau]

The platform or the venue pays a more or less flat fee to one or more local copyright associations for music to be played. If you host it yourself, you can get flat-rate streaming licenses (ie. non-seeking linear programming only) for not a lot of money- from a few dozen to some hundreds a year $ depending on location. The DJs should send set lists to their copyright association so that they can remit to the correct people. On e.g. Twitch, the platform should technically handle everything for you via content ID, but they can't catch everything. In any case, the DJ doesn't pay unless they own the performing or broadcasting venue. Streaming service rules on what is allowed also vary depending on the agreements they have set up with the associations.