Add a 4-bar POP STRING ENSEMBLE 2 track in the following composition:
PS T4Q4 GMPOP KMF BM125 CMDmQC6QBb6QC BL4 IL61Q0Q118Q53Q17Q38Q50Q65Q29 TS INST53 DN3 BS TD3X969 NO57 TD2X115 NOF57 TD1X885 NO57 TD2X052 NOF57 BE BS NO62 NO54 NO57 TD0X021 NO69 NO66 TD0X01 NO62 TD2X344 NOF69 NOF66 TD0X135 NOF62 NOF54 NOF57 TD0X042 NOF62 TD5X479 NO57 NO66 NO61 NO66 NO69 NO73 TD2X083 NOF66 NOF69 NOF73 TD0X021 NOF57 NOF66 NOF61 TD0X562 NO56 NO59 NO64 NO71 NO64 NO68 TD1X802 NOF56 NOF59 TD0X24 NOF71 NOF64 NOF68 TD0X062 NOF64 TD0X562 NO62 NO57 NO54 NO62 NO66 NO69 TD1X812 NOF62 NOF57 NOF54 TD0X323 NOF62 NOF66 TD0X198 NOF69 BE BS BE BS BE TE TS INST118 DN1 BS TD11X969 NO69 TD3X073 NOF69 BE BS TD4X031 NO69 TD2X917 NOF69 TD1X062 NO73 TD0X021 NO59 TD0X167 NOF59 TD1X729 NOF73 TD0X75 NO71 TD0X021 NO57 TD0X167 NOF57 TD1X812 NOF71 TD0X625 NO69 TD0X062 NO55 TD0X167 NOF55 TD1X51 NOF69 BE BS BE BS BE TE TS INST61 DN0 BS TD12X0 NO69 NO81 TD2X146 NOF69 NOF81 BE BS TD3X917 NO69 NO81 TD2X146 NOF69 NOF81 BE BS BE BS BE TE TS INST29 DN2 BS BE BS NO62 NO50 NO57 TD0X021 NO50 TD1X969 NOF50 TD1X979 NO50 TD2X01 NOF50 TD1X833 NOF62 NOF50 NOF57 TD0X219 NO57 NO62 NO50 NO50 TD1X448 NOF50 TD0X677 NOF57 NOF62 NOF50 TD0X542 NO57 NO50 NO62 NO50 TD1X25 NOF50 TD0X667 NOF57 NOF50 NOF62 TD0X75 NO50 TD0X021 NO57 NO50 NO62 TD1X125 NOF50 TD0X792 NOF57 NOF50 NOF62 BE BS NO57 TD13X438 NOF57 TD1X198 NO54 TD1X365 NOF54 BE BS NO54 TD13X906 NOF54 BE TE PE
TS INST50 DN2 BS BE BS NO57 NO50 NO62 NO66 TD1X25 NOF57 NOF50 NOF62 NOF66 TD2X792 NO62 NO66 NO57 NO50 TD0X99 NOF62 NOF66 NOF57 NOF50 TD3X0 NO62 NO66 NO57 NO50 TD1X083 NOF62 NOF66 NOF57 NOF50 TD1X583 NO66 NO62 NO50 NO57 TD1X042 NOF66 NOF62 NOF50 NOF57 TD1X594 NO62 NO50 NO57 NO66 TD0X917 NOF62 NOF50 NOF57 NOF66 BE BS TD0X031 NO78 TD0X667 NOF78 BE BS BE TE