Compose a 4-bar piece in the key of Eb:
PS T4Q4 GMROCK KMEb BM70 CMCmQFmQCmQAbQBbm BL4 IL78Q38Q52Q11Q49Q5Q91Q25
PS T4Q4 GMROCK KMEb BM70 CMCmQFmQCmQAbQBbm BL4 IL78Q38Q52Q11Q49Q5Q91Q25 TS INST78 DN0 BS TD3X708 NO80 TD1X25 NOF80 TD2X792 NO80 TD0X917 NOF80 TD3X083 NO80 TD0X875 NOF80 BE TE TS INST38 DN0 BS NO31 TD13X792 NOF31 TD0X25 NO24 TD1X708 NOF24 BE BS NO25 TD13X792 NOF25 TD0X25 NO22 TD1X75 NOF22 BE BS NO27 TD7X792 NOF27 TD0X208 NO32 TD7X708 NOF32 BE BS NO34 TD13X792 NOF34 TD0X25 NO32 TD1X625 NOF32 BE TE TS INST52 DN2 BS NO63 NO60 TD9X792 NOF63 TD0X208 NO63 TD2X0 NO67 TD1X542 NOF67 TD0X458 NO65 TD1X667 NOF60 TD0X125 NOF63 TD0X208 NOF65 BE BS NO60 NO56 NO65 TD9X625 NOF65 TD0X083 NOF60 TD0X292 NO60 TD2X0 NO65 TD1X75 NOF65 TD0X25 NO67 TD1X583 NOF56 TD0X208 NOF60 TD0X208 NOF67 BE BS NO60 NO63 NO67 TD7X792 NOF60 NOF63 NOF67 TD0X208 NO68 NO63 NO60 TD7X75 NOF68 NOF63 NOF60 BE BS NO61 NO65 NO70 TD15X708 NOF61 NOF65 TD0X292 NOF70 BE TE TS INST11 DN0 BS TD9X958 NO51 TD0X292 NOF51 TD1X667 NO55 TD0X292 NOF55 TD1X875 NO53 TD0X292 NOF53 BE BS TD9X958 NO48 TD0X292 NOF48 TD1X667 NO53 TD0X292 NOF53 TD1X875 NO55 TD0X292 NOF55 BE BS TD8X0 NO56 TD0X292 NOF56 BE BS NO58 TD0X292 NOF58 BE TE TS INST49 DN1 BS NO55 NO67 TD15X708 NOF55 NOF67 BE BS NO53 NO65 NO56 TD15X708 NOF53 NOF65 NOF56 BE BS NO67 NO55 NO63 TD7X708 NOF67 NOF55 NOF63 TD0X292 NO68 NO56 NO60 NO63 TD7X708 NOF68 NOF56 NOF60 NOF63 BE BS NO65 NO61 NO70 TD15X708 NOF65 NOF61 TD0X292 NOF70 BE TE TS INST5 DN0 BS BE BS BE BS BE BS TD0X167 NO82 TD1X708 NOF82 TD0X542 NO82 TD1X292 NOF82 TD0X542 NO82 TD3X333 NOF82 TD0X625 NO82 TD1X583 NOF82 TD0X708 NO82 TD2X917 NOF82 TD0X583 NO82 TD2X0 NOF82 BE TE TS INST91 DN1 BS TD10X0 NO51 TD1X708 NOF51 TD0X292 NO55 TD1X708 NOF55 TD0X292 NO53 TD2X0 NOF53 BE BS NO53 TD9X75 NOF53 TD0X25 NO48 TD1X625 NOF48 TD0X375 NO53 TD1X708 NOF53 TD0X292 NO55 TD2X0 NOF55 BE BS NO55 TD7X75 NOF55 TD0X25 NO56 TD7X792 NOF56 BE BS NO58 NO82 TD16X0 NOF58 NOF82 BE TE TS INST25 DN0 BS BE BS BE BS BE BS BE TE PE