Unreal Engine offers an impressive array of tools for creating generative music and sound design. With deep integration into the engine, these tools unlock the potential for developing interactive and procedural music systems that incorporate synchronized visual elements, surpassing previous limitations. MetaSounds and the Quartz system have opened a door to another exciting application for Unreal Engine.
https://dev.epicgames.com/community/learning/tutorials/m1pb/unreal-engine-creating-an-interactive-never-ending-procedural-music-album-with-metasounds-unreal-fest-2023