Yolopia is a VR workout game which combines automatic beat detection with an editor for setting keyframes along a track to control the beat map generation, tweak the visuals, adjust the physicality level and even seamlessly transition between excercises.
Audio files and their keyframes are stored locally inside the browser which means that you'll have different song lists per device. You can use the export/import functionality to tranfer tracks along with their keyframes as .json files. Please only use music you legitimately own.
Inspiration was drawn from an old slavic story I made up on my own.