Over the course of the next several months, Taiwan’s Cloud Gate Dance Theatre will present a series of digital episodes charting the making of and inspiration behind 13 Tongues, a signature work by the company’s new artistic director and choreographer Cheng Tsung-lung. This first episode is preceded by Beckoning, a 40-minute dance-theater work that distills movements from the Taiwanese street-dancing ritual of Ba Jia Jiang.