Add a 4-bar ROCK ELECTRIC GUITAR (MUTED) track in the following composition:
PS T4Q4 GMROCK KMF BM90 CMFQDm7b5QCQF#m7b5QF BL4 IL53Q53Q24Q34Q0Q29Q99 TS INST34 DN2 BS NO29 TD6X0 NOF29 NO29 TD2X0 NOF29 NO29 TD6X0 NOF29 NO29 TD2X0 NOF29 BE BS NO32 TD6X0 NOF32 NO32 TD2X0 NOF32 NO32 TD6X0 NOF32 NO32 TD2X0 NOF32 BE BS NO31 TD6X0 NOF31 NO31 TD2X0 NOF31 NO43 TD6X0 NOF43 NO31 TD2X0 NOF31 BE BS NO30 TD6X0 NOF30 NO30 TD2X0 NOF30 NO30 TD2X0 NOF30 TD2X0 NO30 TD2X0 NOF30 NO29 TD2X0 NOF29 BE TE TS INST0 DN0 BS BE BS BE BS BE BS BE TE TS INST53 DN0 BS BE TE TS INST24 DN0 BS BE TE PE
TS INST29 DN1 BS TD12X0 NO77 NO72 NO69 TD4X0 NOF77 NOF72 NOF69 BE BS TD12X0 NO68 NO72 NO77 TD4X0 NOF68 NOF72 NOF77 BE BS TD12X0 NO76 NO72 NO67 TD4X0 NOF76 NOF72 NOF67 BE BS TD12X0 NO64 NO60 NO54 TD2X0 NOF64 NOF60 NOF54 NO53 NO60 NO65 TD2X0 NOF53 NOF60 NOF65 BE TE