Add a 4-bar POP SLAP BASS 2 track in the following composition:
PIECE_START TIME_SIGNATURE=4_4 GENRE=POP KEY=D BPM=68 CP=Aaug_Bb_C_Am_Bb BARLENGTH=4 INSTLIST=53_DRUMS_0_38_81 TRACK_START INST=53 DENSITY=0 BAR_START BAR_END TRACK_END TRACK_START INST=DRUMS DENSITY=4 BAR_START NOTE_ON=36 NOTE_ON=38 TIME_DELTA=1.0 NOTE_OFF=38 NOTE_ON=70 TIME_DELTA=1.0 NOTE_OFF=70 NOTE_ON=38 TIME_DELTA=1.0 NOTE_OFF=38 NOTE_ON=70 TIME_DELTA=1.0 NOTE_OFF=36 NOTE_OFF=70 NOTE_ON=38 NOTE_ON=38 TIME_DELTA=1.0 NOTE_OFF=38 NOTE_ON=70 TIME_DELTA=1.0 NOTE_OFF=70 NOTE_ON=38 TIME_DELTA=1.0 NOTE_OFF=38 NOTE_ON=70 TIME_DELTA=1.0 NOTE_OFF=38 NOTE_OFF=70 NOTE_ON=36 NOTE_ON=38 TIME_DELTA=1.0 NOTE_OFF=38 NOTE_ON=70 TIME_DELTA=1.0 NOTE_OFF=70 NOTE_ON=38 TIME_DELTA=1.0 NOTE_OFF=38 NOTE_ON=70 TIME_DELTA=1.0 NOTE_OFF=36 NOTE_OFF=70 NOTE_ON=38 NOTE_ON=54 TIME_DELTA=1.0 NOTE_OFF=54 NOTE_ON=70 TIME_DELTA=1.0 NOTE_OFF=70 NOTE_ON=54 TIME_DELTA=1.0 NOTE_OFF=54 NOTE_ON=70 TIME_DELTA=1.0 NOTE_OFF=38 NOTE_OFF=70 BAR_END BAR_START NOTE_ON=36 NOTE_ON=38 TIME_DELTA=1.0 NOTE_OFF=38 NOTE_ON=70 TIME_DELTA=1.0 NOTE_OFF=70 NOTE_ON=38 TIME_DELTA=1.0 NOTE_OFF=38 NOTE_ON=70 TIME_DELTA=1.0 NOTE_OFF=36 NOTE_OFF=70 NOTE_ON=38 NOTE_ON=38 TIME_DELTA=1.0 NOTE_OFF=38 NOTE_ON=70 TIME_DELTA=1.0 NOTE_OFF=70 NOTE_ON=38 TIME_DELTA=1.0 NOTE_OFF=38 NOTE_ON=70 TIME_DELTA=1.0 NOTE_OFF=38 NOTE_OFF=70 NOTE_ON=36 NOTE_ON=38 TIME_DELTA=1.0 NOTE_OFF=38 NOTE_ON=70 TIME_DELTA=1.0 NOTE_OFF=70 NOTE_ON=38 TIME_DELTA=1.0 NOTE_OFF=38 NOTE_ON=70 TIME_DELTA=1.0 NOTE_OFF=36 NOTE_OFF=70 NOTE_ON=38 NOTE_ON=54 TIME_DELTA=1.0 NOTE_OFF=54 NOTE_ON=70 TIME_DELTA=1.0 NOTE_OFF=70 NOTE_ON=54 TIME_DELTA=1.0 NOTE_OFF=54 NOTE_ON=70 TIME_DELTA=1.0 NOTE_OFF=38 NOTE_OFF=70 BAR_END BAR_START NOTE_ON=36 NOTE_ON=38 TIME_DELTA=1.0 NOTE_OFF=38 NOTE_ON=70 TIME_DELTA=1.0 NOTE_OFF=70 NOTE_ON=38 TIME_DELTA=1.0 NOTE_OFF=38 NOTE_ON=70 TIME_DELTA=1.0 NOTE_OFF=36 NOTE_OFF=70 NOTE_ON=38 NOTE_ON=38 TIME_DELTA=1.0 NOTE_OFF=38 NOTE_ON=70 TIME_DELTA=1.0 NOTE_OFF=70 NOTE_ON=38 TIME_DELTA=1.0 NOTE_OFF=38 NOTE_ON=70 TIME_DELTA=1.0 NOTE_OFF=38 NOTE_OFF=70 NOTE_ON=36 NOTE_ON=38 TIME_DELTA=1.0 NOTE_OFF=38 NOTE_ON=70 TIME_DELTA=1.0 NOTE_OFF=70 NOTE_ON=38 TIME_DELTA=1.0 NOTE_OFF=38 NOTE_ON=70 TIME_DELTA=1.0 NOTE_OFF=36 NOTE_OFF=70 NOTE_ON=38 NOTE_ON=54 TIME_DELTA=1.0 NOTE_OFF=54 NOTE_ON=70 TIME_DELTA=1.0 NOTE_OFF=70 NOTE_ON=54 TIME_DELTA=1.0 NOTE_OFF=54 NOTE_ON=70 TIME_DELTA=1.0 NOTE_OFF=38 NOTE_OFF=70 BAR_END BAR_START NOTE_ON=36 NOTE_ON=38 TIME_DELTA=1.0 NOTE_OFF=38 NOTE_ON=70 TIME_DELTA=1.0 NOTE_OFF=70 NOTE_ON=38 TIME_DELTA=1.0 NOTE_OFF=38 NOTE_ON=70 TIME_DELTA=1.0 NOTE_OFF=36 NOTE_OFF=70 NOTE_ON=38 NOTE_ON=38 TIME_DELTA=1.0 NOTE_OFF=38 NOTE_ON=70 TIME_DELTA=1.0 NOTE_OFF=70 NOTE_ON=38 TIME_DELTA=1.0 NOTE_OFF=38 NOTE_ON=70 TIME_DELTA=1.0 NOTE_OFF=38 NOTE_OFF=70 NOTE_ON=36 NOTE_ON=38 TIME_DELTA=1.0 NOTE_OFF=38 NOTE_ON=70 TIME_DELTA=1.0 NOTE_OFF=70 NOTE_ON=38 TIME_DELTA=1.0 NOTE_OFF=38 NOTE_ON=70 TIME_DELTA=1.0 NOTE_OFF=36 NOTE_OFF=70 NOTE_ON=38 NOTE_ON=54 TIME_DELTA=1.0 NOTE_OFF=54 NOTE_ON=70 TIME_DELTA=1.0 NOTE_OFF=70 NOTE_ON=54 TIME_DELTA=1.0 NOTE_OFF=54 NOTE_ON=70 TIME_DELTA=1.0 NOTE_OFF=38 NOTE_OFF=70 BAR_END TRACK_END TRACK_START INST=0 DENSITY=0 BAR_START BAR_END TRACK_END TRACK_START INST=81 DENSITY=2 BAR_START TIME_DELTA=2.0 NOTE_ON=61 TIME_DELTA=14.0 NOTE_OFF=61 BAR_END BAR_START NOTE_ON=61 TIME_DELTA=4.0 NOTE_OFF=61 NOTE_ON=65 TIME_DELTA=2.0 NOTE_OFF=65 NOTE_ON=65 TIME_DELTA=2.0 NOTE_OFF=65 NOTE_ON=64 TIME_DELTA=1.0 NOTE_OFF=64 NOTE_ON=62 TIME_DELTA=2.0 NOTE_OFF=62 NOTE_ON=60 TIME_DELTA=3.0 NOTE_OFF=60 NOTE_ON=62 TIME_DELTA=2.0 NOTE_OFF=62 BAR_END BAR_START NOTE_ON=60 TIME_DELTA=4.0 NOTE_OFF=60 NOTE_ON=64 TIME_DELTA=2.0 NOTE_OFF=64 NOTE_ON=65 TIME_DELTA=2.0 NOTE_OFF=65 NOTE_ON=64 TIME_DELTA=2.0 NOTE_OFF=64 NOTE_ON=65 TIME_DELTA=1.0 NOTE_OFF=65 NOTE_ON=64 TIME_DELTA=3.0 NOTE_OFF=64 NOTE_ON=65 TIME_DELTA=2.0 NOTE_OFF=65 BAR_END BAR_START NOTE_ON=58 TIME_DELTA=4.0 NOTE_OFF=58 NOTE_ON=58 TIME_DELTA=2.0 NOTE_OFF=58 NOTE_ON=60 TIME_DELTA=2.0 NOTE_OFF=60 NOTE_ON=62 TIME_DELTA=1.0 NOTE_OFF=62 NOTE_ON=62 TIME_DELTA=3.0 NOTE_OFF=62 NOTE_ON=64 TIME_DELTA=2.0 NOTE_OFF=64 NOTE_ON=65 TIME_DELTA=2.0 NOTE_OFF=65 BAR_END TRACK_END PIECE_ENDPIECE_END
TRACK_START INST=38 DENSITY=3 BAR_START NOTE_ON=45 TIME_DELTA=1.0 NOTE_OFF=45 NOTE_ON=45 TIME_DELTA=2.0 NOTE_OFF=45 NOTE_ON=45 TIME_DELTA=1.0 NOTE_OFF=45 NOTE_ON=45 TIME_DELTA=2.0 NOTE_OFF=45 NOTE_ON=45 TIME_DELTA=1.0 NOTE_OFF=45 NOTE_ON=45 TIME_DELTA=1.0 NOTE_OFF=45 NOTE_ON=45 TIME_DELTA=1.0 NOTE_OFF=45 NOTE_ON=45 TIME_DELTA=2.0 NOTE_OFF=45 NOTE_ON=45 TIME_DELTA=1.0 NOTE_OFF=45 NOTE_ON=45 TIME_DELTA=2.0 NOTE_OFF=45 NOTE_ON=45 TIME_DELTA=1.0 NOTE_OFF=45 NOTE_ON=45 TIME_DELTA=1.0 NOTE_OFF=45 BAR_END BAR_START NOTE_ON=50 TIME_DELTA=1.0 NOTE_OFF=50 NOTE_ON=50 TIME_DELTA=2.0 NOTE_OFF=50 NOTE_ON=50 TIME_DELTA=1.0 NOTE_OFF=50 NOTE_ON=50 TIME_DELTA=2.0 NOTE_OFF=50 NOTE_ON=50 TIME_DELTA=1.0 NOTE_OFF=50 NOTE_ON=50 TIME_DELTA=1.0 NOTE_OFF=50 NOTE_ON=46 TIME_DELTA=1.0 NOTE_OFF=46 NOTE_ON=46 TIME_DELTA=2.0 NOTE_OFF=46 NOTE_ON=46 TIME_DELTA=1.0 NOTE_OFF=46 NOTE_ON=46 TIME_DELTA=2.0 NOTE_OFF=46 NOTE_ON=46 TIME_DELTA=1.0 NOTE_OFF=46 NOTE_ON=46 TIME_DELTA=1.0 NOTE_OFF=46 BAR_END BAR_START NOTE_ON=48 TIME_DELTA=1.0 NOTE_OFF=48 NOTE_ON=48 TIME_DELTA=2.0 NOTE_OFF=48 NOTE_ON=48 TIME_DELTA=1.0 NOTE_OFF=48 NOTE_ON=48 TIME_DELTA=2.0 NOTE_OFF=48 NOTE_ON=48 TIME_DELTA=1.0 NOTE_OFF=48 NOTE_ON=48 TIME_DELTA=1.0 NOTE_OFF=48 NOTE_ON=45 TIME_DELTA=1.0 NOTE_OFF=45 NOTE_ON=45 TIME_DELTA=2.0 NOTE_OFF=45 NOTE_ON=45 TIME_DELTA=1.0 NOTE_OFF=45 NOTE_ON=45 TIME_DELTA=2.0 NOTE_OFF=45 NOTE_ON=45 TIME_DELTA=1.0 NOTE_OFF=45 NOTE_ON=45 TIME_DELTA=1.0 NOTE_OFF=45 BAR_END BAR_START NOTE_ON=46 TIME_DELTA=1.0 NOTE_OFF=46 NOTE_ON=46 TIME_DELTA=2.0 NOTE_OFF=46 NOTE_ON=46 TIME_DELTA=1.0 NOTE_OFF=46 NOTE_ON=46 TIME_DELTA=2.0 NOTE_OFF=46 NOTE_ON=46 TIME_DELTA=1.0 NOTE_OFF=46 NOTE_ON=46 TIME_DELTA=1.0 NOTE_OFF=46 NOTE_ON=43 TIME_DELTA=1.0 NOTE_OFF=43 NOTE_ON=43 TIME_DELTA=2.0 NOTE_OFF=43 NOTE_ON=43 TIME_DELTA=1.0 NOTE_OFF=43 NOTE_ON=43 TIME_DELTA=2.0 NOTE_OFF=43 NOTE_ON=43 TIME_DELTA=1.0 NOTE_OFF=43 NOTE_ON=43 TIME_DELTA=1.0 NOTE_OFF=43 BAR_END TRACK_END