Yìng Huīqiān 應撝謙 (1615–1683), zì Sìyín 嗣寅, hào Qiánzhāi 潛齋. Native of Rénhé 仁和 (Hángzhōu, Zhèjiāng). Late-Míng / early-Qīng commoner-scholar in the yímín (Míng-loyalist) tradition; declined to take the Qīng jìnshì exam after the 1644 conquest and lived in retirement, devoted to classical and musical scholarship.
His chief surviving work is the Gǔ yuè shū 古樂書 (KR1i0014) — a two-juan music-theoretical treatise drawing on Cài Yuándìng’s Lǜlǚ xīnshū, the Shuōwén annotations, Zhū Xī, Chén Xiángdào’s Lǐshū, and Lǐ Zhīzǎo’s Pàngōng lǐyuè shū 頖宮禮樂疏. The work is the most important Hángzhōu / Zhèjiāng-school music-theoretical contribution of the seventeenth century. He has a Qīng shǐ gǎo biography (juan 480, Rúlín zhuàn) which praises him as one of the great Hangzhou yímín and the moral exemplar of his generation. CBDB id 65930 confirms the lifedates.