Add a 4-bar POP GUNSHOT track in the following composition:
PS T4Q4 GMPOP KMC BM50 CMAbQBbQCmQAbQBb BL4 IL53Q0Q53Q38Q0Q51 TS INST53 DN2 BS NO67 TD1X979 NOF67 TD0X021 NO70 TD1X979 NOF70 TD0X021 NO67 TD1X979 NOF67 TD0X021 NO65 TD1X979 NOF65 TD0X021 NO63 TD3X979 NOF63 BE BS NO67 TD3X979 NOF67 TD0X021 NO70 TD1X979 NOF70 TD0X021 NO67 TD1X979 NOF67 TD0X021 NO63 TD1X979 NOF63 TD0X021 NO63 TD1X979 NOF63 TD0X021 NO63 TD3X979 NOF63 BE BS NO63 TD3X979 NOF63 TD0X021 NO65 TD1X979 NOF65 TD0X021 NO67 TD1X979 NOF67 TD0X021 NO60 TD1X979 NOF60 TD0X021 NO60 TD1X979 NOF60 TD0X021 NO60 TD3X979 NOF60 BE BS TD2X0 NO60 TD3X979 NOF60 TD0X021 NO60 TD1X979 NOF60 TD0X021 NO67 TD1X979 NOF67 TD0X021 NO65 TD1X979 NOF65 TD0X021 NO63 TD1X979 NOF63 BE TE TS INST51 DN3 BS NO60 NO63 NO68 NO56 NO60 NO63 NO68 NO56 TD7X979 NOF60 NOF63 NOF68 NOF56 NOF60 NOF63 NOF68 NOF56 TD0X021 NO58 NO62 NO65 NO70 NO58 NO62 NO65 NO70 TD7X979 NOF58 NOF62 NOF65 NOF70 NOF58 NOF62 NOF65 NOF70 BE BS NO60 NO63 NO67 NO72 NO55 NO60 NO63 NO67 NO72 NO55 TD15X979 NOF60 NOF63 NOF67 NOF72 NOF55 NOF60 NOF63 NOF67 NOF72 NOF55 BE BS NO60 NO63 NO68 NO56 NO60 NO63 NO68 NO56 TD7X979 NOF60 NOF63 NOF68 NOF56 NOF60 NOF63 NOF68 NOF56 TD0X021 NO58 NO62 NO65 NO70 NO58 NO62 NO65 NO70 TD7X979 NOF58 NOF62 NOF65 NOF70 NOF58 NOF62 NOF65 NOF70 BE BS NO84 NO84 TD16X0 NOF84 NOF84 BE TE TS INST0 DN0 BS BE BS BE BS BE BS BE TE TS INST53 DN0 BS BE TE PE
TS INST0 DN2 BS NO80 NO44 TD1X979 NOF80 TD0X021 NO72 TD1X979 NOF72 TD0X021 NO75 TD1X979 NOF75 TD0X021 NO80 TD1X979 NOF44 NOF80 TD0X021 NO77 NO46 TD1X979 NOF77 TD0X021 NO70 TD1X979 NOF70 TD0X021 NO74 TD1X979 NOF74 TD2X0 NOF46 BE BS NO48 NO75 NO79 NO72 TD15X979 NOF48 NOF75 NOF79 NOF72 BE BS NO44 NO80 NO75 NO72 TD7X979 NOF44 NOF80 NOF75 NOF72 TD0X021 NO46 NO77 NO70 NO74 TD7X979 NOF46 NOF77 NOF70 NOF74 BE TE