Major success as a conductor came when he won the Pierre Monteux 1st Prize at the 2017 Smoky Mountain International Conducting Competition. 

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Lester is the Founder and Music Director of MacPherson Philharmonic Orchestra. He is actively involved in the music education in Singapore. He works closely with schools to educate the next generation of students. Currently the conductor for Victoria Junior College String Ensemble and Temasek Polytechnic String Ensemble. He was also conductor of other institutions namely, Singapore Management University, CHIJ Toa Payoh and CHIJ St Joseph.

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Since 2012, Lester had the honor of being selected for international masterclasses. Namely with  Markand Thakar, Larry Rachleff, Donald Schleicher, Atso Almila, Luke Dollman, Dwight Oltman and Neeme Jarvi.

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His main conducting study was with Associate Professor Wang Ya-Hui. In 2022,  he was conferred a Masters of Music from Yong Siew Toh Conservatory under the tutelage of Principal Conductor Jason Lai. He also holds a Bachelor degree in Music Education with Psychology from Singapore University of Social Science.

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During those master classes, he had the privilege to work with the Duluth Superior Symphony Orchestra, Baltimore Chamber Orchestra,  Bohuslav Martinu˚ and the Singapore Symphony Orchestra.