The Singapore Symphony Orchestra (SSO) is a symphony orchestra based in Singapore. Its principal concert venue is the Esplanade Concert Hall. The orchestra also gives concerts at the Victoria Concert Hall, and performs about 100 concerts per year. The orchestra was first established In 1978 with Choo Hoey its resident director. The orchestra's music director from 1997 to 2019 was Shui Lan, and Hans Graf as its Chief Conductor from 2020 onward.