Grand opera house, ornate decorations, red velvet curtains, golden balconies, crystal chandeliers, tiered seating, polished wooden floors, sound-reflecting surfaces, resonant cavities, precise sound diffusion, optimal acoustic resonance, state-of-the-art sound systems, advanced audio technology, high-fidelity speakers, sensitive microphones, echo-free zones, reverberation control, harmonious sound waves, soft warm lighting, dramatic spotlights, 3/4 composition, symmetrical architecture, grandeur atmosphere.