Title: Opera Grandeur — Velvet, Brass, and Thunder Creative prompt: A premiere night at La Scala where a lone tenor holds a followspot that tracks the visitor's cursor. Chandelier, orchestra swell, and velvet curtain are playable instruments while double-clicked high notes erupt petals and bravo. Four acts rotate arias and chorus size. Design description: Gold double-frame on oxblood with cream libretto column beside a theatrical canvas of chandelier glow, followspot beam, singers, and falling curtain over a four-cell program explainer. Visual techniques: - Canvas proscenium with chandelier radial glow and flicker - Followspot beam with eased cursor tracking and floor pool - Singer row scaling to twelve in finale with aria arm gesture - Petal burst particles, dust motes in beam, and gold-fringed curtain - Dusk-to-house-light remapping via orchestra and chandelier sliders Interaction model: Act tabs swap arias and cast size, sliders drive chandelier/orchestra/curtain, cursor steers the followspot, clicks aim it, double-clicks fire high notes, and bravo/curtain buttons stage ovations.