He also held the first violin position for the Malaysian Philharmonic Orchestra ( MPYO ) .
At that time , Lau was also actively involved as a regular secessionist with the RTM Orchestra and the National Symphony Orchestra .
Lau also held the first violin position for the Malaysian Philharmonic Orchestra ( MPYO ) .
At that time , Lau was also actively involved as a regular secessionist with the RTM Orchestra and the National Symphony Orchestra .