Pianist Hayato Sumino, who will give a recital at Lotte Concert Hall on Oct. 29, holds a master’s degree in engineering from the University of Tokyo. He advanced to the semifinal round of the 2021 Chopin International Piano Competition while still an engineering student at the university. During the competition, he livestreamed his practice sessions and interacted with viewers using YouTube’s live chat. His second-round performance drew as many as 45,000 viewers. At the time, the classical music world largely regarded him as an eccentric who happened to enjoy playing the piano. Sumino was a top student who attended Kaisei Junior and Senior High School, one of Japan’s most prestigious schools. From an early age, he was immersed in music video games. Even while preparing for university entrance exams, he competed in gaming tournaments. While a student at the University of Tokyo, he researched music information processing at the Institute for Research and Coordination in Acoustics/Music in Paris. In a crowded field, his unconventional activities initially seemed like a gimmick desi