Because it used to open only in the ASEAN Committee meeting on culture and counselling and related activities only. The ASEAN Summit the following ranges have been used in the song's opening meeting.
Since it was launched only in the ASEAN Committee on Culture and Information and related activities only. The ASEAN summit was followed by a song to open the meeting from time to time.
Since open only in the ASEAN Committee on culture and information, and related activities. The ASEAN summit during the subsequent song to open at a time.