“米子,我也抄首民歌赠你!”1926年的春天。盛开的樱花把仙台这个日本北部的海滨城市装点得格外美丽。这是一个星期日的上午,苏步青正在宿舍里写他大学时代的第一篇数学论文——《关于费开特的一个定理的注记》,忽然从樱花深处传来少女银铃般的歌声。美丽动听的歌声一直唱到他住的这所平房前才停止。歌声一停,响起了“咚咚咚”的敲门 “Yonago, I also copy the first folk songs give you!” 1926 spring. Blooming cherry blossoms send Sendai, a coastal city in northern Japan, beautifully decorated. This is a Sunday morning, Su Buqing is dorm writing his first math essay in college days - “a note on the Fei Kai special theorem,” Suddenly from the cherry blossoms came girl silver bell-like voice. Beautiful sweet singing has been sung until he lived in this bungalow stopped. Stop singing, sounded the “pound” knock