in 1996, tuason joined emi hk as a&r director, his biggest achievement in emi was on cass pang "chuang wai" album which had sold more than 300,000 three hundred thousand copies alone. tuason's highlighted career is when he was appointed by television broadcast ltd as musical director for the ceremony of hong kong reunification to china in 1997, where he had arranged and conducted the hong kong philharmonic orchestra and chinese orchestra combine to perform one of china classical masterpiece "the yellow river piano concerto". tuason had invited his classical piano teacher, the well-known concert pianist in hk cai chong li to play on the piano concerto.