Add a 8-bar ROCK GUNSHOT track in the following composition:
PIECE_START TIME_SIGNATURE=4_4 GENRE=ROCK KEY=A BPM=144.29310607910156 CP=Am_G_Am_Em7_Am BARLENGTH=8 INSTLIST=0_34_42_42_29_24_53_81_53_0 TRACK_START INST=0 DENSITY=0 BAR_START BAR_END BAR_START BAR_END BAR_START BAR_END BAR_START BAR_END BAR_START BAR_END BAR_START BAR_END BAR_START BAR_END BAR_START BAR_END TRACK_END TRACK_START INST=29 DENSITY=0 BAR_START BAR_END BAR_START BAR_END BAR_START BAR_END BAR_START TIME_DELTA=10.0 NOTE_ON=64 TIME_DELTA=6.0 NOTE_OFF=64 BAR_END BAR_START NOTE_ON=64 TIME_DELTA=16.0 NOTE_OFF=64 BAR_END TRACK_END TRACK_START INST=34 DENSITY=0 BAR_START BAR_END BAR_START NOTE_ON=45 TIME_DELTA=14.0 NOTE_OFF=45 NOTE_ON=45 TIME_DELTA=2.0 NOTE_OFF=45 BAR_END BAR_START NOTE_ON=45 TIME_DELTA=14.0 NOTE_OFF=45 NOTE_ON=45 TIME_DELTA=2.0 NOTE_OFF=45 BAR_END BAR_START NOTE_ON=57 TIME_DELTA=14.0 NOTE_OFF=57 BAR_END BAR_START NOTE_ON=52 TIME_DELTA=10.0 NOTE_OFF=52 TIME_DELTA=2.0 NOTE_ON=50 TIME_DELTA=4.0 NOTE_OFF=50 BAR_END BAR_START NOTE_ON=45 TIME_DELTA=16.0 NOTE_OFF=45 BAR_END BAR_START NOTE_ON=33 TIME_DELTA=12.0 NOTE_OFF=33 BAR_END BAR_START NOTE_ON=36 TIME_DELTA=14.0 NOTE_OFF=36 NOTE_ON=28 TIME_DELTA=2.0 NOTE_OFF=28 BAR_END TRACK_END TRACK_START INST=42 DENSITY=1 BAR_START BAR_END BAR_START NOTE_ON=55 TIME_DELTA=6.0 NOTE_OFF=55 NOTE_ON=52 TIME_DELTA=2.0 NOTE_OFF=52 NOTE_ON=57 TIME_DELTA=2.0 NOTE_OFF=57 NOTE_ON=59 TIME_DELTA=4.0 NOTE_OFF=59 NOTE_ON=60 TIME_DELTA=2.0 NOTE_OFF=60 BAR_END BAR_START NOTE_ON=59 TIME_DELTA=8.0 NOTE_OFF=59 NOTE_ON=55 TIME_DELTA=8.0 NOTE_OFF=55 BAR_END BAR_START NOTE_ON=45 TIME_DELTA=6.0 NOTE_OFF=45 NOTE_ON=52 TIME_DELTA=2.0 NOTE_OFF=52 NOTE_ON=57 TIME_DELTA=2.0 NOTE_OFF=57 NOTE_ON=59 TIME_DELTA=4.0 NOTE_OFF=59 NOTE_ON=60 TIME_DELTA=2.0 NOTE_OFF=60 BAR_END BAR_START NOTE_ON=62 NOTE_ON=59 TIME_DELTA=4.0 NOTE_OFF=62 NOTE_OFF=59 NOTE_ON=55 NOTE_ON=59 TIME_DELTA=4.0 NOTE_OFF=55 NOTE_OFF=59 NOTE_ON=50 NOTE_ON=55 TIME_DELTA=4.0 NOTE_OFF=50 NOTE_OFF=55 NOTE_ON=47 NOTE_ON=50 TIME_DELTA=4.0 NOTE_OFF=47 NOTE_OFF=50 BAR_END BAR_START NOTE_ON=48 NOTE_ON=45 TIME_DELTA=16.0 NOTE_OFF=48 NOTE_OFF=45 BAR_END TRACK_END PIECE_END
TRACK_START INST=0 DENSITY=4 BAR_START BAR_END BAR_START NOTE_ON=72 NOTE_ON=69 NOTE_ON=64 NOTE_ON=45 TIME_DELTA=4.0 NOTE_OFF=72 NOTE_OFF=69 NOTE_OFF=64 NOTE_ON=69 NOTE_ON=64 NOTE_ON=72 TIME_DELTA=4.0 NOTE_OFF=69 NOTE_OFF=64 NOTE_OFF=72 NOTE_ON=64 NOTE_ON=69 NOTE_ON=72 TIME_DELTA=4.0 NOTE_OFF=64 NOTE_OFF=69 NOTE_OFF=72 NOTE_ON=71 NOTE_ON=69 NOTE_ON=64 TIME_DELTA=1.0 NOTE_OFF=71 NOTE_OFF=69 NOTE_OFF=64 NOTE_ON=72 TIME_DELTA=3.0 NOTE_OFF=45 NOTE_OFF=72 BAR_END BAR_START NOTE_ON=71 NOTE_ON=67 NOTE_ON=62 NOTE_ON=45 TIME_DELTA=4.0 NOTE_OFF=71 NOTE_OFF=67 NOTE_OFF=62 NOTE_ON=71 NOTE_ON=67 NOTE_ON=62 TIME_DELTA=4.0 NOTE_OFF=71 NOTE_OFF=67 NOTE_OFF=62 NOTE_ON=71 NOTE_ON=67 NOTE_ON=62 TIME_DELTA=4.0 NOTE_OFF=71 NOTE_OFF=67 NOTE_OFF=62 NOTE_ON=69 NOTE_ON=67 NOTE_ON=62 TIME_DELTA=1.0 NOTE_OFF=69 NOTE_OFF=67 NOTE_OFF=62 NOTE_ON=71 TIME_DELTA=3.0 NOTE_OFF=45 NOTE_OFF=71 BAR_END BAR_START NOTE_ON=72 NOTE_ON=69 NOTE_ON=64 NOTE_ON=45 TIME_DELTA=4.0 NOTE_OFF=72 NOTE_OFF=69 NOTE_OFF=64 NOTE_ON=69 NOTE_ON=64 NOTE_ON=72 TIME_DELTA=4.0 NOTE_OFF=69 NOTE_OFF=64 NOTE_OFF=72 NOTE_ON=64 NOTE_ON=69 NOTE_ON=72 TIME_DELTA=4.0 NOTE_OFF=64 NOTE_OFF=69 NOTE_OFF=72 NOTE_ON=71 NOTE_ON=69 NOTE_ON=64 TIME_DELTA=1.0 NOTE_OFF=71 NOTE_OFF=69 NOTE_OFF=64 NOTE_ON=72 TIME_DELTA=3.0 NOTE_OFF=45 NOTE_OFF=72 BAR_END BAR_START NOTE_ON=71 NOTE_ON=67 NOTE_ON=62 NOTE_ON=45 TIME_DELTA=4.0 NOTE_OFF=71 NOTE_OFF=67 NOTE_OFF=62 NOTE_ON=71 NOTE_ON=67 NOTE_ON=62 TIME_DELTA=4.0 NOTE_OFF=71 NOTE_OFF=67 NOTE_OFF=62 NOTE_ON=71 NOTE_ON=67 NOTE_ON=62 TIME_DELTA=4.0 NOTE_OFF=71 NOTE_OFF=67 NOTE_OFF=62 NOTE_ON=69 NOTE_ON=67 NOTE_ON=62 TIME_DELTA=1.0 NOTE_OFF=69 NOTE_OFF=67 NOTE_OFF=62 NOTE_ON=71 TIME_DELTA=3.0 NOTE_OFF=45 NOTE_OFF=71 BAR_END BAR_START NOTE_ON=72 NOTE_ON=69 NOTE_ON=64 NOTE_ON=45 TIME_DELTA=4.0 NOTE_OFF=72 NOTE_OFF=69 NOTE_OFF=64 NOTE_ON=69 NOTE_ON=64 NOTE_ON=72 TIME_DELTA=4.0 NOTE_OFF=69 NOTE_OFF=64 NOTE_OFF=72 NOTE_ON=64 NOTE_ON=69 NOTE_ON=72 TIME_DELTA=4.0 NOTE_OFF=64 NOTE_OFF=69 NOTE_OFF=72 NOTE_ON=72 NOTE_ON=69 NOTE_ON=64 TIME_DELTA=2.0 NOTE_OFF=45 NOTE_ON=52 TIME_DELTA=2.0 NOTE_OFF=72 NOTE_OFF=69 NOTE_OFF=64 NOTE_OFF=52 BAR_END BAR_START NOTE_ON=71 NOTE_ON=62 NOTE_ON=67 NOTE_ON=57 TIME_DELTA=4.0 NOTE_OFF=71 NOTE_OFF=62 NOTE_OFF=67 NOTE_ON=71 NOTE_ON=67 NOTE_ON=62 TIME_DELTA=4.0 NOTE_OFF=71 NOTE_OFF=67 NOTE_OFF=62 NOTE_ON=71 NOTE_ON=67 NOTE_ON=62 TIME_DELTA=4.0 NOTE_OFF=71 NOTE_OFF=67 NOTE_OFF=62 NOTE_ON=71 NOTE_ON=62 NOTE_ON=67 TIME_DELTA=4.0 NOTE_OFF=57 NOTE_OFF=71 NOTE_OFF=62 NOTE_OFF=67 BAR_END BAR_START NOTE_ON=70 NOTE_ON=67 NOTE_ON=64 NOTE_ON=48 TIME_DELTA=4.0 NOTE_OFF=70 NOTE_OFF=67 NOTE_OFF=64 NOTE_ON=70 NOTE_ON=67 NOTE_ON=64 TIME_DELTA=4.0 NOTE_OFF=70 NOTE_OFF=67 NOTE_OFF=64 NOTE_ON=64 NOTE_ON=70 NOTE_ON=67 TIME_DELTA=2.0 NOTE_OFF=48 NOTE_ON=50 TIME_DELTA=2.0 NOTE_OFF=64 NOTE_OFF=70 NOTE_OFF=67 NOTE_ON=70 NOTE_ON=67 NOTE_ON=64 TIME_DELTA=2.0 NOTE_OFF=50 NOTE_ON=52 TIME_DELTA=2.0 NOTE_OFF=70 NOTE_OFF=67 NOTE_OFF=64 NOTE_OFF=52 BAR_END TRACK_END PIECE_END