Sang-In Lee is a composer who graduated at Korea National University of Arts and earned Master degrees of Music in Musical Writing and Orchestration at Paris Conservatory. His teachers include Sungho Hwang, Sungi Kim, Byung-eun Yoo, Cyrille Lehn, Jean Baptiste Courtois, Thierry Escaich, David Leszynski, and Marc-André Dalbavie. After serving as a pianist and arranger in R.O.K. Navy Band, he was awarded the Young Composer Prize at KOCOA Music Festival in 2009. Lee studied at Paris Conservatory in 2011-2014 and graduated with the highest honors in harmony, counterpoint, fugue and musical structure, and he was awarded the special prize Marcel Dautremer of Fugue by The Alumni Association of the CNSMD. In 2015 Lee was awarded at Coups de Vents for his <Suite Coréenne>, and in 2017 first prize at International Composition Competition of the Pablo Casals Festival. His <La petite phrase de Vinteuil> for sextet, commissioned at the 2018 Music Festival, was well received by the audience and musicians participating in the festival. In the same year, he was appointed as a judge of the Academy Soloist Competition at the Festival. Currently, he is a lecturer at Yonsei University and Korea National University of Arts.