Add a 4-bar POP ELECTRIC GRAND PIANO track in the following composition:
PIECE_START TIME_SIGNATURE=4_4 GENRE=POP KEY=G BPM=110 CP=C6_Bb_Gm7_Dm BARLENGTH=4 INSTLIST=0_24_53_24_5_49_0_38_16_48_3 TRACK_START INST=49 DENSITY=1 BAR_START NOTE_ON=55 NOTE_ON=60 NOTE_ON=64 TIME_DELTA=16.0 NOTE_OFF=55 NOTE_OFF=60 NOTE_OFF=64 BAR_END BAR_START NOTE_ON=53 NOTE_ON=58 NOTE_ON=62 TIME_DELTA=16.0 NOTE_OFF=53 NOTE_OFF=58 NOTE_OFF=62 BAR_END BAR_START NOTE_ON=55 NOTE_ON=58 NOTE_ON=62 TIME_DELTA=16.0 NOTE_OFF=55 NOTE_OFF=58 NOTE_OFF=62 BAR_END BAR_START NOTE_ON=57 NOTE_ON=62 NOTE_ON=65 TIME_DELTA=16.0 NOTE_OFF=57 NOTE_OFF=62 NOTE_OFF=65 BAR_END TRACK_END TRACK_START INST=48 DENSITY=0 BAR_START BAR_END TRACK_END TRACK_START INST=5 DENSITY=1 BAR_START NOTE_ON=55 NOTE_ON=60 NOTE_ON=64 TIME_DELTA=16.0 NOTE_OFF=55 NOTE_OFF=60 NOTE_OFF=64 BAR_END BAR_START NOTE_ON=58 NOTE_ON=62 NOTE_ON=65 TIME_DELTA=16.0 NOTE_OFF=58 NOTE_OFF=62 NOTE_OFF=65 BAR_END BAR_START NOTE_ON=58 NOTE_ON=62 NOTE_ON=67 TIME_DELTA=16.0 NOTE_OFF=58 NOTE_OFF=62 NOTE_OFF=67 BAR_END BAR_START NOTE_ON=57 NOTE_ON=62 NOTE_ON=65 TIME_DELTA=16.0 NOTE_OFF=57 NOTE_OFF=62 NOTE_OFF=65 BAR_END TRACK_END TRACK_START INST=38 DENSITY=2 BAR_START NOTE_ON=36 TIME_DELTA=2.0 NOTE_OFF=36 TIME_DELTA=1.0 NOTE_ON=36 TIME_DELTA=0.5 NOTE_OFF=36 TIME_DELTA=2.5 NOTE_ON=36 TIME_DELTA=1.0 NOTE_OFF=36 TIME_DELTA=1.0 NOTE_ON=36 TIME_DELTA=1.0 NOTE_OFF=36 TIME_DELTA=1.0 NOTE_ON=36 TIME_DELTA=1.0 NOTE_OFF=36 TIME_DELTA=3.0 NOTE_ON=36 TIME_DELTA=1.0 NOTE_OFF=36 BAR_END BAR_START NOTE_ON=34 TIME_DELTA=2.0 NOTE_OFF=34 TIME_DELTA=1.0 NOTE_ON=34 TIME_DELTA=0.5 NOTE_OFF=34 TIME_DELTA=2.5 NOTE_ON=34 TIME_DELTA=1.0 NOTE_OFF=34 TIME_DELTA=1.0 NOTE_ON=34 TIME_DELTA=5.0 NOTE_OFF=34 TIME_DELTA=1.0 NOTE_ON=34 TIME_DELTA=1.0 NOTE_OFF=34 BAR_END BAR_START NOTE_ON=31 TIME_DELTA=2.0 NOTE_OFF=31 TIME_DELTA=1.0 NOTE_ON=31 TIME_DELTA=0.5 NOTE_OFF=31 TIME_DELTA=2.5 NOTE_ON=31 TIME_DELTA=1.0 NOTE_OFF=31 TIME_DELTA=1.0 NOTE_ON=31 TIME_DELTA=1.0 NOTE_OFF=31 TIME_DELTA=1.0 NOTE_ON=31 TIME_DELTA=1.0 NOTE_OFF=31 TIME_DELTA=3.0 NOTE_ON=31 TIME_DELTA=1.0 NOTE_OFF=31 BAR_END BAR_START NOTE_ON=38 TIME_DELTA=2.0 NOTE_OFF=38 TIME_DELTA=1.0 NOTE_ON=38 TIME_DELTA=0.5 NOTE_OFF=38 TIME_DELTA=2.5 NOTE_ON=38 TIME_DELTA=1.0 NOTE_OFF=38 TIME_DELTA=1.0 NOTE_ON=38 TIME_DELTA=5.0 NOTE_OFF=38 TIME_DELTA=1.0 NOTE_ON=38 TIME_DELTA=1.0 NOTE_OFF=38 BAR_END TRACK_END PIECE_END
TRACK_START INST=3 DENSITY=1 BAR_START TIME_DELTA=2.0 NOTE_ON=64 TIME_DELTA=2.0 NOTE_OFF=64 NOTE_ON=74 TIME_DELTA=2.0 NOTE_OFF=74 NOTE_ON=76 TIME_DELTA=4.0 NOTE_OFF=76 NOTE_ON=77 TIME_DELTA=2.0 NOTE_OFF=77 NOTE_ON=74 TIME_DELTA=4.0 NOTE_OFF=74 BAR_END BAR_START TIME_DELTA=4.0 NOTE_ON=57 TIME_DELTA=2.0 NOTE_OFF=57 NOTE_ON=58 TIME_DELTA=4.0 NOTE_OFF=58 NOTE_ON=77 TIME_DELTA=2.0 NOTE_OFF=77 NOTE_ON=74 TIME_DELTA=4.0 NOTE_OFF=74 BAR_END BAR_START BAR_END BAR_START TIME_DELTA=2.0 NOTE_ON=65 TIME_DELTA=2.0 NOTE_OFF=65 NOTE_ON=74 TIME_DELTA=2.0 NOTE_OFF=74 NOTE_ON=76 TIME_DELTA=4.0 NOTE_OFF=76 NOTE_ON=77 TIME_DELTA=2.0 NOTE_OFF=77 NOTE_ON=74 TIME_DELTA=4.0 NOTE_OFF=74 BAR_END TRACK_END PIECE_END