Sebastian started learning Dizi at the age of 10. Under the tutelage of Prof Zhan Yong Ming, he obtained his NUS Grade 6 certificate (Distinction) in 2005. He consequently received his NUS Grade 8 certificate (Distinction) in 2006, and completed the NUS Diploma (Merit) in 2007.

Having started out in primary school, Sebastian's SYF journey in the several schools he has attended has been rewarding, achieving the Top 5 award in 2004 for Evergreen Primary School Chinese Orchestra, Gold with Honours award in 2007 for Catholic High School Chinese Orchestra and Gold award in 2009 for Victoria Junior College Chinese Orchestra.

Sebastian has been the Principal Player for the Dizi sections in several orchestras he has partaken in, such as CHSCO, VJCO, as well as the MOE Chinese Orchestra Camp in 2007. He was also the Section Leader in Toa PayohWest Community Centre Chinese Orchestra in his JC years. With his external orchestra, Sebastian has joined the biennial NAC Chinese Music Competition several times, in the ensemble category, achieving all top 3 positions from 2008 to 2014.

Sebastian is also a member of the NUS Chinese orchestra, having served as vice-president from 2014 to 2015.