Indian music has always been defined by sur—the precise pitch of notes—and raag, the melodic frameworks that guide the flow of emotion. Even in today’s contemporary Hindi music, whether cinematic or independent, these classical foundations continue to shape the way songs are written, sung, and felt. The interplay of sur and raag provides both structure and soul, giving listeners a subtle yet powerful emotional experience. In Bollywood, Arijit Singh exemplifies the seamless integration of classical principles into modern songs. Take “Laal Ishq” from Goliyon Ki Raasleela: Ram-Leela. Composed with Raag Bihag as its melodic foundation, the song captures a serene, romantic mood typical of this raag, often performed in the evening. The rising and falling patterns of the notes create a sense of fluidity, allowing Arijit’s voice to weave through the melody with effortless expression. Another standout, “Channa Mereya” from Ae Dil Hai Mushkil, blends classical and Sufi-inspired elements. While i...