Add a 4-bar R&B/SOUL STRING ENSEMBLE 2 track in the following composition:
PS T4Q4 GMR&B/SOUL KMF BM55 CMBb7QC#maj7QAbQFm BL4 IL27Q54Q35Q50Q8Q35 TS INST54 DN1 BS TD15X812 NO72 NO61 NO65 NO68 TD0X188 NOF72 NOF61 NOF65 NOF68 BE BS NO72 NO61 NO65 NO68 TD16X0 NOF72 NOF61 NOF65 NOF68 BE BS NO72 NO61 NO65 NO68 TD16X0 NOF72 NOF61 NOF65 NOF68 BE BS NO72 NO61 NO65 NO68 TD0X25 NOF72 NOF61 NOF65 NOF68 BE TE TS INST35 DN0 BS BE TE TS INST8 DN0 BS BE BS BE BS BE BS BE TE TS INST35 DN2 BS NO34 TD2X833 NO58 TD0X104 NOF34 TD0X062 NO41 TD2X354 NOF58 TD0X479 NOF41 TD0X167 NO46 TD0X021 NO56 TD1X75 NOF46 TD0X229 NO34 TD3X0 NOF34 NO46 TD1X021 NOF56 TD1X813 NOF46 TD0X062 NO53 TD0X104 NO34 TD1X938 NOF34 TD0X042 NOF53 NO56 TD0X021 NOF56 BE BS NO37 NO56 TD1X646 NOF56 TD0X458 NO56 TD0X708 NOF56 TD0X104 NO53 TD8X604 NOF53 TD4X146 NOF37 BE BS NO53 TD9X875 NO58 TD0X521 NOF58 TD0X396 NO60 TD0X458 NOF60 TD0X5 NO63 TD0X312 NOF53 TD1X146 NOF63 TD0X646 NO63 TD1X729 NOF63 BE BS NO32 TD0X062 NO65 TD2X25 NOF32 TD0X208 NOF65 TD0X479 NO32 TD0X083 NO63 TD2X417 NOF32 TD0X5 NO39 TD5X521 NOF39 TD0X479 NO32 TD2X292 NOF63 TD1X104 NOF32 TD0X438 NO60 TD0X167 NOF60 BE TE PE
TS INST50 DN2 BS TD15X646 NO72 NO61 NO65 NO68 TD0X354 NOF72 NOF61 NOF65 NOF68 BE BS NO72 NO61 NO65 NO68 TD16X0 NOF72 NOF61 NOF65 NOF68 BE BS NO72 NO61 NO65 NO68 TD15X604 NO63 NO56 TD0X062 NOF72 NOF61 NOF65 NOF68 TD0X333 NOF63 NOF56 BE BS NO63 NO56 TD15X583 NOF63 NOF56 NO60 NO53 TD0X417 NOF60 NOF53 BE TE