容思澤先生，原籍中國東北黑龍江省，滿族鑲白旗人，一九三一年九月九日出生於廣州，二Ｏ一Ｏ年三月十五日在香港逝世。其琴學為家傳，自曾祖慶瑞學習操縵於浙江錢塘李澄宇，後宦遊粵海，得與粵地琴友交，獲《古岡遺譜》、《悟雪山房琴譜》等流行粵地之名譜，遂成家學，娶側室李芝仙，並授琴藝，一八七三年著刋《琴瑟合譜》，越二年病故，家人遷户廣東番禺，民國後改「容」姓。李氏將琴學嫡傳三子容葆廷及孫容心言，再傳容思澤，其子孫亦繼承家學，現已延達六代，此為容氏琴學之淵源。容思澤先生遷居香港後，於一九五Ｏ年考入香港皇家警察，後轉民眾安全服務處工作，一九八五年退休，其間操縵不絕，除與港地琴人謝心回、盧家炳、蔡德允、饒宗頤諸先生往還外，還致力將祖學傳承，桃李滿門。
RONG Si-ze was born on September 9, 1931 in Guangzhou, Guangdong Province and passed away on March 15, 2010. Her ancestral home was in Heilungjiang Province, Northeastern China. He learned the qin under family tradition since their ancestor, Qing Rui, who learned it from LI Cheng-yu in late Qing Dynasty. Later on, Qing Rui worked away from his homeland to Guangdong and kept close with qin friends there. At that time, he got many famous scores including the Posthumous Scores of Gugang, Qin Scores of Wu Xue Shan Fang, etc. In 1873, he published his book, Qinse Hepu. His wife LI Zhi-xian learned the qin from him and taught it to his son and grand son RONG Bao-ting and RONG Xin-yan respectively. RONG Si-ze then learned it from his father RONG Xin-yan. After settling in Hong Kong, he taught his family successors and many others that helped actuate the development of qin music in Hong Kong.