Sounds like a fascinating challenge. I’d start with a modular floor system that uses tuned resonators—small metal plates or composite elements that vibrate in harmony with the music’s frequency. The base would be a sturdy timber frame for stability, but each segment would be linked to a small hydraulic or electro‑active polymer actuator that can shift the plates slightly. When a beat hits, the actuators send a subtle, controlled motion through the floor, so the dancers feel the rhythm physically. Around the perimeter, a series of acoustic panels tuned to the same frequencies would reinforce the vibrations, creating an immersive environment. And of course, the whole structure would be meticulously engineered to keep the weight and damping just right, so the motion is gentle yet perceptible. It’s a delicate balance of physics, art, and architecture.