An unreleased song by the late Taiwanese pop singer Teresa Teng, who took East Asia by storm from the 1970s to 1990s, has been discovered in Japan and will be released in June, a source familiar with the matter said Thursday.The light pop song, likely recorded in the mid-1980s, was a joint work of composer Takashi Miki and lyricist Toyohisa Araki, the duo behind Teng's hits in Japan, including "Toki no Nagare ni Mi wo Makase" (Give yourself to the flow of time).The song, with a tone different from Teng's dramatic Japanese melodies, such as "Tsugunai" (Atonement), will be included in a three…READ FULL ARTICLE