This article provides a step-by-step guide on how to stream music over WebRTC using React and WebAudio. It explains how to build a real-time application for listening to music with friends, similar to the social DJ platform Turntable.fm. The author leverages modern browser technologies such as WebRTC and WebAudio to create this application. They demonstrate how to use MediaElementAudioSourceNode and MediaStreamAudioDestinationNode in WebAudio to publish an audio stream from any source like a URL. Finally, they explain how to publish a MediaStreamTrack over a WebRTC session and start a WebRTC session. The full code is provided for reference.