baophutho.vn Amid modern rhythms of life, as industrialization and urbanization rapidly transform the lives of ethnic minority communities, preserving spoken languages, scripts, and traditional cultural values faces significant challenges. For the San Diu ethnic group, their spoken language is not merely a tool for daily communication but a "key" to preserving community memory—housing a treasure trove of folk knowledge, customs, practices, beliefs, and Soong co folk melodies passed down through generations. Consequently, classes teaching the San Diu language and Soong co singing, currently maintained across many localities in Phu Tho province, not only contribute to safeguarding a cultural heritage but also nurture love for ancestral roots among the younger generation.