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.