This video is included in this channel's Japanese song playlist
https://www.youtube.com/playlist?list=PLjDc9r7oZzO6NiLl_amQwEDB-EA0ek00g

~ adapted from "Was Ich Dir Sagen Will", originally sung by Udo Jürgens 1967。Released as a debut single on October 25, 1971
by Pedro and Capricious. Teresa Teng recorded this song in 「愛の世界」1976. Teresa Teng forever!