Add a 4-bar POP SYNTH STRINGS 1 track in the following composition:
PS T4Q4 GMPOP KMC BM100 CMBbQCmQBbQCm BL4 IL25Q38Q53Q25Q24Q24Q81Q51 TS INST25 DN0 BS BE BS BE BS BE BS BE TE TS INST24 DN0 BS BE TE TS INST81 DN2 BS NO67 TD1X983 NOF67 TD0X017 NO70 TD1X983 NOF70 TD0X017 NO67 TD1X983 NOF67 TD0X017 NO65 TD1X983 NOF65 TD0X017 NO63 TD3X983 NOF63 BE BS NO60 TD3X983 NOF60 TD0X017 NO63 TD1X983 NOF63 TD0X017 NO65 TD1X983 NOF65 TD0X017 NO67 TD3X983 NOF67 TD0X017 NO67 TD3X983 NOF67 BE BS NO65 TD1X983 NOF65 TD0X017 NO67 TD1X983 NOF67 TD0X017 NO65 TD1X983 NOF65 TD0X017 NO63 TD1X983 NOF63 TD0X017 NO62 TD3X983 NOF62 BE BS NO60 TD3X983 NOF60 TD0X017 NO63 TD1X983 NOF63 TD0X017 NO65 TD1X983 NOF65 TD0X017 NO67 TD3X983 NOF67 TD0X017 NO67 TD3X983 NOF67 BE TE TS INST25 DN4 BS TD2X0 NO63 NO60 NO63 NO60 TD0X983 NOF63 NOF60 NOF63 NOF60 TD2X017 NO63 NO60 NO63 NO60 TD0X983 NOF63 NOF60 NOF63 NOF60 TD2X017 NO58 NO62 NO58 NO62 TD0X983 NOF58 NOF62 NOF58 NOF62 TD2X017 NO58 NO62 NO58 NO62 TD0X983 NOF58 NOF62 NOF58 NOF62 TD2X017 NO58 NO62 NO58 NO62 TD0X983 NOF58 NOF62 NOF58 NOF62 BE BS TD2X0 NO63 NO60 NO63 NO60 TD0X983 NOF63 NOF60 NOF63 NOF60 TD2X017 NO63 NO60 NO63 NO60 TD0X983 NOF63 NOF60 NOF63 NOF60 TD2X017 NO63 NO60 NO63 NO60 TD0X983 NOF63 NOF60 NOF63 NOF60 TD2X017 NO60 NO63 NO60 NO63 TD0X983 NOF60 NOF63 NOF60 NOF63 TD2X017 NO63 NO60 NO63 NO60 TD0X983 NOF63 NOF60 NOF63 NOF60 BE BS TD2X0 NO63 NO60 NO63 NO60 TD0X983 NOF63 NOF60 NOF63 NOF60 TD2X017 NO63 NO60 NO63 NO60 TD0X983 NOF63 NOF60 NOF63 NOF60 TD2X017 NO58 NO62 NO58 NO62 TD0X983 NOF58 NOF62 NOF58 NOF62 TD2X017 NO58 NO62 NO58 NO62 TD0X983 NOF58 NOF62 NOF58 NOF62 TD2X017 NO58 NO62 NO58 NO62 TD0X983 NOF58 NOF62 NOF58 NOF62 BE BS TD2X0 NO63 NO60 NO63 NO60 TD0X983 NOF63 NOF60 NOF63 NOF60 TD2X017 NO63 NO60 NO63 NO60 TD0X983 NOF63 NOF60 NOF63 NOF60 TD2X017 NO63 NO60 NO63 NO60 TD0X983 NOF63 NOF60 NOF63 NOF60 TD2X017 NO60 NO63 NO60 NO63 TD0X983 NOF60 NOF63 NOF60 NOF63 TD2X017 NO63 NO60 NO63 NO60 TD0X983 NOF63 NOF60 NOF63 NOF60 BE TE PE
TS INST51 DN2 BS TD8X0 NO58 NO62 NO58 NO62 TD7X983 NOF58 NOF62 NOF58 NOF62 BE BS NO60 NO63 NO60 NO63 TD16X0 NOF60 NOF63 NOF60 NOF63 BE BS NO60 NO63 NO60 NO63 TD7X983 NOF60 NOF63 NOF60 NOF63 TD0X017 NO58 NO62 NO58 NO62 TD7X983 NOF58 NOF62 NOF58 NOF62 BE BS NO60 NO63 NO60 NO63 TD16X0 NOF60 NOF63 NOF60 NOF63 BE TE PE