Add a 8-bar POP CHOIR AAHS track in the following composition:
PS T4Q4 GMPOP KMF BM105 CMFQDmQBbmaj7QAQDm BL8 IL24Q39Q48Q48Q53Q53Q53Q0Q24Q53Q7Q24Q53Q90Q28Q52Q51Q53Q43Q62 TS INST24 DN0 BS BE TE TS INST48 DN0 BS BE TE TS INST24 DN0 BS BE TE TS INST48 DN0 BS BE TE PE
TS INST53 DN0 BS BE BS NO57 TD7X967 NOF57 TD0X033 NO57 TD7X967 NOF57 BE BS NO53 TD3X967 NOF53 TD0X033 NO57 TD3X967 NOF57 TD0X033 NO57 TD3X967 NOF57 TD0X033 NO57 TD3X967 NOF57 BE BS NO53 TD15X967 NOF53 BE BS NO57 TD11X967 NOF57 BE BS NO57 TD7X967 NOF57 TD0X033 NO60 TD3X967 NOF60 TD0X033 NO60 TD3X967 NOF60 BE BS NO62 TD7X967 NOF62 TD0X033 NO60 TD7X967 NOF60 BE BS NO57 TD16X0 NOF57 BE TE