秦筝教育家、演奏家、西安音乐学院教授周延甲，一九三四年六月出生于山西省闻喜县，二零一九年八月三日病逝于西安。一九五一年，开始参加县文化馆工作，一九五三年，考入西北艺术专科学校附中，后升入西安音乐专科学校（今西安音乐学院前身）师承中国古筝教育事业主要奠基人曹正和齐鲁筝派名家高自成，一九五九年，毕业并留校任教，一九九七年，受聘香港演艺学院任全职导师一年。尝为中国音乐家协会会员、中国音协古筝学会和中国民族管弦乐学会古筝专业委员会副会长、陕西秦筝学会会长、《秦筝》杂志主编。整理编创了不少的筝曲，主要作品有《秦桑曲》、《姜女泪》（又名《长城调》）、《百花引》、《凄凉曲》等蜚声海内外。
ZHOU Yan-jia
ZHOU Yan-jia was born on June 1934 in Wenxi, Shanxi province and passed away of illness on August 3, 2019 in Xi’an. In 1953, he was admitted to the affiliated middle school of Xi Bei Arts Training School and later admitted to Xi’an Music School which is now the Xi’an Conservatory. He was learned the zheng under the famous musicians CAO Zheng and GAO Zhi-cheng. In 1959, after his graduation from Xi’an Conservatory, he became the teacher of the conservatory. In 1997, he was appointed as a tutor of the Hong Kong APA for one year. He is a member of the Musicians’ Association of China, vice president of the Zheng Society of the Musicians’ Association of China, vice president of the Committee of Zheng Profession of the Chinese Orchestral Music Society, president of Shaanxi Qinzheng Society, chief-editor of the Qinzheng magazine. He has composed many famous pieces for the zheng, such as A Tune of Qin Mulberry, The Tears of the Widow Jiang, Hundred Flower and Tune of Misery, etc.