Compose a 4-bar piece that follows the F_Bb_F7_Bb_F:
PIECE_START TIME_SIGNATURE=9_8 GENRE=OTHER KEY=Bb BPM=66 CP=F_Bb_F7_Bb_F BARLENGTH=4 INSTLIST=32_72_83_6_16
PIECE_START TIME_SIGNATURE=9_8 GENRE=OTHER KEY=Bb BPM=66 CP=F_Bb_F7_Bb_F BARLENGTH=4 INSTLIST=32_72_83_6_16 TRACK_START INST=32 DENSITY=0 BAR_START NOTE_ON=51 TIME_DELTA=4.0 NOTE_OFF=51 NOTE_ON=53 TIME_DELTA=8.0 NOTE_OFF=53 TIME_DELTA=4.0 NOTE_ON=53 TIME_DELTA=2.0 NOTE_OFF=53 BAR_END BAR_START NOTE_ON=53 TIME_DELTA=2.0 NOTE_OFF=53 NOTE_ON=58 TIME_DELTA=4.0 NOTE_OFF=58 NOTE_ON=53 TIME_DELTA=4.0 NOTE_OFF=53 NOTE_ON=58 TIME_DELTA=4.0 NOTE_OFF=58 NOTE_ON=57 TIME_DELTA=4.0 NOTE_OFF=57 BAR_END BAR_START NOTE_ON=55 TIME_DELTA=4.0 NOTE_OFF=55 NOTE_ON=50 TIME_DELTA=4.0 NOTE_OFF=50 NOTE_ON=55 TIME_DELTA=4.0 NOTE_OFF=55 NOTE_ON=53 TIME_DELTA=4.0 NOTE_OFF=53 NOTE_ON=51 TIME_DELTA=2.0 NOTE_OFF=51 BAR_END BAR_START NOTE_ON=51 TIME_DELTA=10.0 NOTE_OFF=51 BAR_END TRACK_END TRACK_START INST=72 DENSITY=0 BAR_START NOTE_ON=79 TIME_DELTA=4.0 NOTE_OFF=79 NOTE_ON=72 TIME_DELTA=4.0 NOTE_OFF=72 NOTE_ON=77 TIME_DELTA=8.0 NOTE_OFF=77 NOTE_ON=75 TIME_DELTA=2.0 NOTE_OFF=75 BAR_END BAR_START NOTE_ON=75 TIME_DELTA=2.0 NOTE_OFF=75 NOTE_ON=74 TIME_DELTA=4.0 NOTE_OFF=74 NOTE_ON=74 TIME_DELTA=2.0 NOTE_OFF=74 NOTE_ON=72 TIME_DELTA=2.0 NOTE_OFF=72 NOTE_ON=74 TIME_DELTA=4.0 NOTE_OFF=74 NOTE_ON=77 TIME_DELTA=4.0 NOTE_OFF=77 BAR_END BAR_START NOTE_ON=70 TIME_DELTA=4.0 NOTE_OFF=70 NOTE_ON=70 TIME_DELTA=2.0 NOTE_OFF=70 NOTE_ON=69 TIME_DELTA=2.0 NOTE_OFF=69 NOTE_ON=70 TIME_DELTA=4.0 NOTE_OFF=70 NOTE_ON=74 TIME_DELTA=4.0 NOTE_OFF=74 NOTE_ON=67 TIME_DELTA=2.0 NOTE_OFF=67 BAR_END BAR_START NOTE_ON=67 TIME_DELTA=2.0 NOTE_OFF=67 NOTE_ON=69 TIME_DELTA=4.0 NOTE_OFF=69 NOTE_ON=70 TIME_DELTA=12.0 NOTE_OFF=70 BAR_END TRACK_END TRACK_START INST=83 DENSITY=0 BAR_START NOTE_ON=67 TIME_DELTA=4.0 NOTE_OFF=67 NOTE_ON=69 TIME_DELTA=6.0 NOTE_OFF=69 NOTE_ON=70 TIME_DELTA=1.0 NOTE_OFF=70 NOTE_ON=69 TIME_DELTA=1.0 NOTE_OFF=69 NOTE_ON=67 TIME_DELTA=4.0 NOTE_OFF=67 NOTE_ON=69 TIME_DELTA=2.0 NOTE_OFF=69 BAR_END BAR_START NOTE_ON=69 TIME_DELTA=2.0 NOTE_OFF=69 NOTE_ON=70 TIME_DELTA=8.0 NOTE_OFF=70 TIME_DELTA=4.0 NOTE_ON=65 TIME_DELTA=4.0 NOTE_OFF=65 BAR_END BAR_START NOTE_ON=67 TIME_DELTA=8.0 NOTE_OFF=67 TIME_DELTA=4.0 NOTE_ON=62 TIME_DELTA=4.0 NOTE_OFF=62 NOTE_ON=63 TIME_DELTA=2.0 NOTE_OFF=63 BAR_END BAR_START NOTE_ON=63 TIME_DELTA=2.0 NOTE_OFF=63 NOTE_ON=65 TIME_DELTA=4.0 NOTE_OFF=65 NOTE_ON=67 TIME_DELTA=8.0 NOTE_OFF=67 BAR_END TRACK_END TRACK_START INST=6 DENSITY=3 BAR_START NOTE_ON=79 NOTE_ON=67 NOTE_ON=51 TIME_DELTA=4.0 NOTE_OFF=79 NOTE_OFF=67 NOTE_OFF=51 NOTE_ON=72 NOTE_ON=69 NOTE_ON=53 TIME_DELTA=4.0 NOTE_OFF=72 NOTE_ON=77 TIME_DELTA=2.0 NOTE_OFF=69 NOTE_ON=70 NOTE_ON=62 TIME_DELTA=1.0 NOTE_OFF=70 NOTE_OFF=62 NOTE_ON=69 NOTE_ON=60 TIME_DELTA=1.0 NOTE_OFF=53 NOTE_OFF=69 NOTE_OFF=60 NOTE_ON=58 NOTE_ON=67 TIME_DELTA=4.0 NOTE_OFF=77 NOTE_OFF=58 NOTE_OFF=67 NOTE_ON=75 NOTE_ON=53 NOTE_ON=60 NOTE_ON=69 TIME_DELTA=2.0 NOTE_OFF=75 NOTE_OFF=53 NOTE_OFF=60 NOTE_OFF=69 BAR_END BAR_START NOTE_ON=75 NOTE_ON=53 NOTE_ON=60 NOTE_ON=69 TIME_DELTA=2.0 NOTE_OFF=75 NOTE_OFF=53 NOTE_OFF=60 NOTE_OFF=69 NOTE_ON=74 NOTE_ON=58 NOTE_ON=62 NOTE_ON=70 TIME_DELTA=4.0 NOTE_OFF=74 NOTE_OFF=58 NOTE_ON=74 NOTE_ON=53 TIME_DELTA=2.0 NOTE_OFF=74 NOTE_ON=72 TIME_DELTA=2.0 NOTE_OFF=62 NOTE_OFF=70 NOTE_OFF=53 NOTE_OFF=72 NOTE_ON=74 NOTE_ON=58 TIME_DELTA=4.0 NOTE_OFF=74 NOTE_OFF=58 NOTE_ON=77 NOTE_ON=57 NOTE_ON=60 NOTE_ON=65 TIME_DELTA=4.0 NOTE_OFF=77 NOTE_OFF=57 NOTE_OFF=60 NOTE_OFF=65 BAR_END BAR_START NOTE_ON=70 NOTE_ON=55 NOTE_ON=62 NOTE_ON=67 TIME_DELTA=4.0 NOTE_OFF=70 NOTE_OFF=55 NOTE_ON=70 NOTE_ON=50 TIME_DELTA=2.0 NOTE_OFF=70 NOTE_ON=69 TIME_DELTA=2.0 NOTE_OFF=62 NOTE_OFF=67 NOTE_OFF=50 NOTE_OFF=69 NOTE_ON=70 NOTE_ON=55 TIME_DELTA=4.0 NOTE_OFF=70 NOTE_OFF=55 NOTE_ON=74 NOTE_ON=53 NOTE_ON=56 NOTE_ON=62 TIME_DELTA=4.0 NOTE_OFF=74 NOTE_OFF=53 NOTE_OFF=56 NOTE_OFF=62 NOTE_ON=67 NOTE_ON=63 NOTE_ON=58 NOTE_ON=51 TIME_DELTA=2.0 NOTE_OFF=67 NOTE_OFF=63 NOTE_OFF=58 NOTE_OFF=51 BAR_END BAR_START NOTE_ON=67 NOTE_ON=63 NOTE_ON=58 NOTE_ON=51 TIME_DELTA=2.0 NOTE_OFF=67 NOTE_OFF=63 NOTE_OFF=58 NOTE_ON=69 NOTE_ON=65 NOTE_ON=60 TIME_DELTA=4.0 NOTE_OFF=69 NOTE_OFF=65 NOTE_OFF=60 NOTE_ON=67 NOTE_ON=61 NOTE_ON=70 TIME_DELTA=4.0 NOTE_OFF=51 TIME_DELTA=4.0 NOTE_OFF=67 NOTE_OFF=61 TIME_DELTA=4.0 NOTE_OFF=70 BAR_END TRACK_END TRACK_START INST=16 DENSITY=0 BAR_START TIME_DELTA=10.0 NOTE_ON=62 TIME_DELTA=1.0 NOTE_OFF=62 NOTE_ON=60 TIME_DELTA=1.0 NOTE_OFF=60 NOTE_ON=58 TIME_DELTA=4.0 NOTE_OFF=58 NOTE_ON=60 TIME_DELTA=2.0 NOTE_OFF=60 BAR_END BAR_START NOTE_ON=60 TIME_DELTA=2.0 NOTE_OFF=60 NOTE_ON=62 TIME_DELTA=8.0 NOTE_OFF=62 TIME_DELTA=4.0 NOTE_ON=60 TIME_DELTA=4.0 NOTE_OFF=60 BAR_END BAR_START NOTE_ON=62 TIME_DELTA=8.0 NOTE_OFF=62 TIME_DELTA=4.0 NOTE_ON=56 TIME_DELTA=4.0 NOTE_OFF=56 NOTE_ON=58 TIME_DELTA=2.0 NOTE_OFF=58 BAR_END BAR_START NOTE_ON=58 TIME_DELTA=2.0 NOTE_OFF=58 NOTE_ON=60 TIME_DELTA=4.0 NOTE_OFF=60 NOTE_ON=61 TIME_DELTA=8.0 NOTE_OFF=61 BAR_END TRACK_END PIECE_END