Bei Zhixian 贝知弦 is Miguel Leiria Pereira. In his Chinese name given by the Lisbon University Confucius Institute, Bei 贝 means shell, and Zhixian 知弦 is to know the string. He is a Double Bass player inspired by Gary Karr's unique bow sound, teacher at the Lisbon National Conservatory, also interested in Classical, Experimental, Avant-Garde, Conceptual, undetermined styles, and music from China.