# v5.8 Chinese Sound-Family Layer - New: chinese_sound_family_explorer.html - Principle: sound similarity creates an observation/candidate edge, not an etymological conclusion. - Four evidence layers: Sound / Graphic / Historical / Semantic. - Seed family: 玄、旋、悬、漩; 弦 is explicitly near-sound/conceptual candidate. - Integration: index, Twin Language Explorer, Universal Explorer. - Next data job: generate C3500 full pinyin+tone families, then HI review top 100.