By 1937, Japan's invasion had already ravaged China for years, leaving the land scarred and its people suffering immensely. "The Great Wall Ballad"– written for a film halted by invasion – crossed oceans and stirred the hearts of overseas Chinese compatriots, inspiring many to return and defend their homeland. Today, that weathered vinyl rests in a Nanjing museum, still echoing its story. With AI, the tale it never got to tell – of a family torn by war, bound by song – is finally brought to life. More than a melody, it's the enduring voice of a nation.