Telematic music performances are an established performance practice in contemporary music. Performing music pieces with geographically distributed musicians is both a technological challenge and an artistic one. These challenges and the resulting possibilities can lead to innovative aesthetic realizations. This paper presents the implementation and realization of “The Entanglement,” a telematic concert performance in a metaverse environment. The system is realized using web-based frameworks to implement a platform-independent online multi-user environment with volumetric, three- dimensional, streaming of audio and video. This allows live performance of this improvisation piece based on an algorithmic quantum computer composition within a freely explorational virtual environment. We describe the development and realization of the piece and metaverse environment, as well as its artistic and conceptual contextualization.