	Tuason was born in Hong Kong, the son of Bading Tuason, musical director for the Hong Kong Hilton from 1968 - 1996. In 1982, Tuason became assistant to Joseph Koo, one of the most respected composers in Hong Kong, known as the Godfather of Cantopop. Koo became Tuason's mentor in his musical career and entry into the Hong Kong music business. In the early years working as an assistant for JK, Tuason had shown his skills and talent as an arranger and keyboardist to many major records label in HK, as a result, many recording label's artists are looking for Tuason to arrange and played keyboards on their albums, most of the Hong Kong recording artists has Tuason's name on their album credit list as arranger, keyboardist, or composer. They included: 