Modern auditorium, blue theme, spacious interior, high ceiling, blue velvet curtains, rows of blue upholstered seats, polished wooden floor, blue LED lighting, spotlight beams, subtle blue glow, ornate blue and gold decorations, grand piano on stage, microphone stand, lectern, professional audio equipment, soft blue carpet, acoustic panels, soundproofing materials, minimalist modern architecture, angular lines, geometric shapes, urban cityscape outside, evening atmosphere, warm and inviting ambient lighting.