Derek Gleeson is an Irish/American musician. Born in Dublin, Ireland. He is currently the music director and conductor of the Dublin Philharmonic Orchestra (since 1997) and has been the conductor at the Anna Livia Dublin International Opera Festival (now disbanded). Since 2012 Gleeson is also music director & conductor of the Rachmaninov Festival Orchestra. Since January 2016 Gleeson is Principal Guest Conductor or The Harbin Symphony Orchestra, Harbin, China. (A city of 10 million people) He also composes musical scores for film and television and of symphonic music for the concert hall.