[2] He worked as a session keyboard player and guitarist in the 1960s, as a member of The Mighty Mystics and the Now Generation Band, both of which also included his brother, guitarist Mikey Chung, and Lee "Scratch" Perry's band The Upsetters, among others.
[3][4] He began working as a producer in the 1970s, initially with Sharon Forrester on her debut album, and set up his Edge productions company in 1974.
[3] His productions included work by The Abyssinians, The Heptones, and Marcia Griffiths.
[3] He also worked with Ras Michael's Sons of Negus band, on the 1975 album Rastafari Dub, playing synthesizer, organ and piano,[5] and worked regularly with singer Pablo Moses, both as keyboard player and producer, including his first and best-known recording "I Man a Grasshopper".
[2][6] Chung also produced the recordings that would be released as the first two albums from Ijahman Levi.