Act as a dystopian fiction writer with expertise in oppressive societal themes. Craft a gripping opening chapter for a novel set in a world where music is forbidden by a totalitarian regime. Describe [CITY_NAME], a once-vibrant cultural hub now silenced under [REGIME_NAME]'s rule. Your protagonist, [PROTAGONIST_NAME], is a former musician who secretly preserves fragments of banned melodies. When they discover a hidden underground movement that uses [CODED_METHOD] to share music, they must choose between safety and reigniting artistic rebellion. Weave in sensory details of suppressed sound (e.g., how footsteps replace rhythm) and the psychological toll of sonic deprivation. Include a tense encounter with [AUTHORITY_FIGURE] that foreshadows coming conflict. Maintain 80% grim realism with 20% lyrical hope in prose style.