Add a 4-bar ELECTRONIC STRING ENSEMBLE 1 track in the following composition:
PIECE_START TIME_SIGNATURE=4_4 GENRE=ELECTRONIC KEY=Bb BPM=64 CP=Ab6_Bbm BARLENGTH=4 INSTLIST=25_26_49_38_53_48_87 TRACK_START INST=26 DENSITY=3 BAR_START NOTE_ON=77 NOTE_ON=75 TIME_DELTA=1.0 NOTE_OFF=77 NOTE_OFF=75 NOTE_ON=72 TIME_DELTA=1.0 NOTE_OFF=72 NOTE_ON=68 TIME_DELTA=2.0 NOTE_OFF=68 NOTE_ON=77 NOTE_ON=75 TIME_DELTA=1.0 NOTE_OFF=77 NOTE_OFF=75 NOTE_ON=72 TIME_DELTA=1.0 NOTE_OFF=72 NOTE_ON=68 TIME_DELTA=2.0 NOTE_OFF=68 NOTE_ON=77 NOTE_ON=75 TIME_DELTA=1.0 NOTE_OFF=77 NOTE_OFF=75 NOTE_ON=72 TIME_DELTA=1.0 NOTE_OFF=72 NOTE_ON=68 TIME_DELTA=2.0 NOTE_OFF=68 NOTE_ON=77 NOTE_ON=75 TIME_DELTA=1.0 NOTE_OFF=77 NOTE_OFF=75 NOTE_ON=72 TIME_DELTA=1.0 NOTE_OFF=72 NOTE_ON=68 TIME_DELTA=2.0 NOTE_OFF=68 BAR_END BAR_START NOTE_ON=75 TIME_DELTA=1.0 NOTE_OFF=75 NOTE_ON=73 TIME_DELTA=1.0 NOTE_OFF=73 NOTE_ON=70 TIME_DELTA=2.0 NOTE_OFF=70 NOTE_ON=75 TIME_DELTA=1.0 NOTE_OFF=75 NOTE_ON=73 TIME_DELTA=1.0 NOTE_OFF=73 NOTE_ON=70 TIME_DELTA=2.0 NOTE_OFF=70 NOTE_ON=75 TIME_DELTA=1.0 NOTE_OFF=75 NOTE_ON=73 TIME_DELTA=1.0 NOTE_OFF=73 NOTE_ON=70 TIME_DELTA=2.0 NOTE_OFF=70 NOTE_ON=75 TIME_DELTA=1.0 NOTE_OFF=75 NOTE_ON=73 TIME_DELTA=1.0 NOTE_OFF=73 NOTE_ON=70 TIME_DELTA=2.0 NOTE_OFF=70 BAR_END BAR_START NOTE_ON=77 NOTE_ON=75 TIME_DELTA=1.0 NOTE_OFF=77 NOTE_OFF=75 NOTE_ON=73 TIME_DELTA=1.0 NOTE_OFF=73 NOTE_ON=70 TIME_DELTA=2.0 NOTE_OFF=70 NOTE_ON=77 NOTE_ON=75 TIME_DELTA=1.0 NOTE_OFF=77 NOTE_OFF=75 NOTE_ON=73 TIME_DELTA=1.0 NOTE_OFF=73 NOTE_ON=70 TIME_DELTA=2.0 NOTE_OFF=70 NOTE_ON=77 NOTE_ON=75 TIME_DELTA=1.0 NOTE_OFF=77 NOTE_OFF=75 NOTE_ON=73 TIME_DELTA=1.0 NOTE_OFF=73 NOTE_ON=70 TIME_DELTA=2.0 NOTE_OFF=70 NOTE_ON=77 NOTE_ON=75 TIME_DELTA=1.0 NOTE_OFF=77 NOTE_OFF=75 NOTE_ON=73 TIME_DELTA=1.0 NOTE_OFF=73 NOTE_ON=70 TIME_DELTA=2.0 NOTE_OFF=70 BAR_END BAR_START NOTE_ON=75 TIME_DELTA=1.0 NOTE_OFF=75 NOTE_ON=73 TIME_DELTA=1.0 NOTE_OFF=73 NOTE_ON=70 TIME_DELTA=2.0 NOTE_OFF=70 NOTE_ON=75 TIME_DELTA=1.0 NOTE_OFF=75 NOTE_ON=73 TIME_DELTA=1.0 NOTE_OFF=73 NOTE_ON=70 TIME_DELTA=2.0 NOTE_OFF=70 NOTE_ON=75 TIME_DELTA=1.0 NOTE_OFF=75 NOTE_ON=73 TIME_DELTA=1.0 NOTE_OFF=73 NOTE_ON=70 TIME_DELTA=2.0 NOTE_OFF=70 NOTE_ON=75 TIME_DELTA=1.0 NOTE_OFF=75 NOTE_ON=73 TIME_DELTA=1.0 NOTE_OFF=73 NOTE_ON=70 TIME_DELTA=2.0 NOTE_OFF=70 BAR_END TRACK_END TRACK_START INST=38 DENSITY=1 BAR_START TIME_DELTA=2.0 NOTE_ON=32 TIME_DELTA=2.0 NOTE_OFF=32 TIME_DELTA=2.0 NOTE_ON=32 TIME_DELTA=2.0 NOTE_OFF=32 TIME_DELTA=2.0 NOTE_ON=32 TIME_DELTA=2.0 NOTE_OFF=32 TIME_DELTA=2.0 NOTE_ON=32 TIME_DELTA=2.0 NOTE_OFF=32 BAR_END BAR_START TIME_DELTA=2.0 NOTE_ON=34 TIME_DELTA=2.0 NOTE_OFF=34 TIME_DELTA=2.0 NOTE_ON=34 TIME_DELTA=2.0 NOTE_OFF=34 TIME_DELTA=2.0 NOTE_ON=34 TIME_DELTA=2.0 NOTE_OFF=34 TIME_DELTA=2.0 NOTE_ON=34 TIME_DELTA=2.0 NOTE_OFF=34 BAR_END BAR_START TIME_DELTA=2.0 NOTE_ON=34 TIME_DELTA=2.0 NOTE_OFF=34 TIME_DELTA=2.0 NOTE_ON=34 TIME_DELTA=2.0 NOTE_OFF=34 TIME_DELTA=2.0 NOTE_ON=34 TIME_DELTA=2.0 NOTE_OFF=34 TIME_DELTA=2.0 NOTE_ON=34 TIME_DELTA=2.0 NOTE_OFF=34 BAR_END BAR_START TIME_DELTA=2.0 NOTE_ON=34 TIME_DELTA=2.0 NOTE_OFF=34 TIME_DELTA=2.0 NOTE_ON=34 TIME_DELTA=2.0 NOTE_OFF=34 TIME_DELTA=2.0 NOTE_ON=34 TIME_DELTA=2.0 NOTE_OFF=34 TIME_DELTA=2.0 NOTE_ON=34 TIME_DELTA=2.0 NOTE_OFF=34 BAR_END TRACK_END TRACK_START INST=53 DENSITY=0 BAR_START BAR_END TRACK_END TRACK_START INST=25 DENSITY=0 BAR_START BAR_END BAR_START BAR_END BAR_START BAR_END BAR_START BAR_END TRACK_END PIECE_END
TRACK_START INST=49 DENSITY=0 BAR_START TIME_DELTA=15.666666666666666 NOTE_ON=89 TIME_DELTA=0.3333333333333333 NOTE_OFF=89 BAR_END BAR_START NOTE_ON=89 TIME_DELTA=16.0 NOTE_OFF=89 BAR_END BAR_START NOTE_ON=89 TIME_DELTA=15.6 NOTE_ON=94 TIME_DELTA=0.40000000000000036 NOTE_OFF=89 NOTE_OFF=94 BAR_END BAR_START NOTE_ON=89 NOTE_ON=94 TIME_DELTA=16.0 NOTE_OFF=89 NOTE_OFF=94 BAR_END TRACK_END