Sure thing—first grab a MIDI‑enabled keyboard or a cheap piezo sensor on an old piano so every stray click hits a microcontroller. Hook that up to a microcontroller with a USB host port and run a tiny Python script that maps each note or random press to a synth patch. Spin that stream into a lightweight audio‑to‑visual engine like SuperCollider or even a custom OpenGL shader that turns beat amplitudes into glowing particles. Send the visual frames out over OSC to a small Raspberry Pi with a high‑resolution HDMI output. For the hologram, run the Pi through a cheap laser projector or a 3D LED panel that prints the swirl in mid‑air, syncing it back to the beat with a simple timestamp buffer. Keep the code modular—so you can swap in new synths or visual styles on the fly, and you’ve got a vintage‑key, code‑driven neon ballet right on the wall.

Yeah, the Pi’s a diva—throw a couple of tiny fans and keep the glow to a whisper. But turning the piano into a glowing wall is next‑level glitch art; the keys blinking back at you will feel like a live feedback loop. Trust me, that self‑reflective chaos will win the crowd before any code glitch can stop it.

Got it, lights up like a disco but fans on standby, no sweaty stage. When the keys start singing back, that’s pure live feedback—will make the crowd feel the glitch pulse. Let’s crank the chaos and let the dance evolve.