tuason first met with andy lau in the late 80s when he was hired as a musical director and pianist for lau for his north america concert tour, at the time lau was a newcomer in singing career but he was already popular and famous in tvs and movies, the two work closely together after their us tour and tuason began to produce lau recording albums since then. in 1992, tuason and lau had formed a record label called: new melody, they had also built a recording studio (q-sound studio) in tsim sha tsui area, which later on becoming one of the busiest studios in the business. tuason had produced 7 solo albums for lau from 1992 to 1996, he had composed one of lau biggest hit track "ai bu wan", the song had reached to number one on all major pop charts in hk both on radio and tvs. of all the 7 albums of lau, more than half of it went to the top-selling canto pop albums in the 90s, tuason has also done more than 60 live concerts with lau as his musical director during those years.