Mermaid Music Monday: Tei Shi enchants The Fillmore Emilie Dylewski October 6, 2015 Concerts, Festivals, and Live Reviews With a dreamy half-hour set, Valerie Teicher, also known by her stage name Tei Shi (pronounced Tay-She), opened the stage Monday night at The Fillmore for British electropop band Years and Years. Tei Shi s...