Ключевые слова: 40s, audio, band, cheerful, concert, crowd, design, digital, disk, entertainment, event, father, festival, glow, happy, innovation, jacket, led, light, lights, male, middleaged, midlife, music, musical, musician, nightlife, parent, party, people, performance, professional, rhythm, rock, show, stage, syncing, tech festival, technology, wearable, work life balance, yellow,