India, June 21 -- Every year on June 21, the calendar brings around World Music Day. It started casually back in 1982 when France turned its streets into stages. What began as a local experiment became a stubborn global habit. We argue constantly these days, but a familiar tune still silences a room. Just look at any modern playlist. A routine morning shuffle might drag you through the quiet, deep-seated grief of Gulzar's Tere Bina Zindagi Se sung with heartbreaking clarity by Lata Mangeshkar and Kishore Kumar, right before dropping you into the acoustic ache of Hozier's Cherry Wine. Heavy qawwalis share space with modern rap. You also cannot ignore the absolute chokehold BTS has on the world. The group from Seoul killed the language barr...