Add a 8-bar ROCK FRETLESS BASS track in the following composition:
PIECE_START TIME_SIGNATURE=4_4 GENRE=ROCK KEY=F# BPM=74.16441345214844 CP=F#_Dmaj7_E6_F#7_Dmaj7 BARLENGTH=8 INSTLIST=18_32_24_24_0_36_53_53_16_3_68_28 TRACK_START INST=16 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=68 DENSITY=2 BAR_START TIME_DELTA=14.0 NOTE_ON=71 NOTE_ON=68 TIME_DELTA=2.0 NOTE_OFF=71 NOTE_OFF=68 BAR_END BAR_START NOTE_ON=71 NOTE_ON=68 TIME_DELTA=16.0 NOTE_OFF=71 NOTE_OFF=68 BAR_END BAR_START NOTE_ON=71 NOTE_ON=68 TIME_DELTA=14.0 NOTE_OFF=71 NOTE_OFF=68 NOTE_ON=69 TIME_DELTA=2.0 NOTE_OFF=69 BAR_END BAR_START NOTE_ON=68 TIME_DELTA=2.0 NOTE_OFF=68 NOTE_ON=66 TIME_DELTA=4.0 NOTE_OFF=66 NOTE_ON=62 TIME_DELTA=4.0 NOTE_OFF=62 TIME_DELTA=2.0 NOTE_ON=71 TIME_DELTA=4.0 NOTE_OFF=71 BAR_END BAR_START NOTE_ON=71 TIME_DELTA=4.0 NOTE_OFF=71 NOTE_ON=69 TIME_DELTA=2.0 NOTE_OFF=69 NOTE_ON=69 TIME_DELTA=4.0 NOTE_OFF=69 NOTE_ON=68 TIME_DELTA=2.0 NOTE_OFF=68 NOTE_ON=69 TIME_DELTA=2.0 NOTE_OFF=69 NOTE_ON=68 TIME_DELTA=2.0 NOTE_OFF=68 BAR_END BAR_START NOTE_ON=66 TIME_DELTA=4.0 NOTE_OFF=66 NOTE_ON=69 NOTE_ON=63 NOTE_ON=68 TIME_DELTA=2.0 NOTE_OFF=63 NOTE_OFF=68 NOTE_ON=64 NOTE_ON=69 TIME_DELTA=2.0 NOTE_OFF=64 NOTE_OFF=69 NOTE_ON=64 NOTE_ON=59 TIME_DELTA=2.0 NOTE_OFF=69 NOTE_OFF=64 NOTE_OFF=59 NOTE_ON=66 NOTE_ON=61 TIME_DELTA=6.0 NOTE_OFF=66 NOTE_OFF=61 BAR_END BAR_START NOTE_ON=69 NOTE_ON=64 TIME_DELTA=4.0 NOTE_OFF=69 NOTE_OFF=64 NOTE_ON=64 NOTE_ON=59 TIME_DELTA=2.0 NOTE_OFF=64 NOTE_OFF=59 NOTE_ON=66 NOTE_ON=61 TIME_DELTA=4.0 NOTE_OFF=66 NOTE_OFF=61 NOTE_ON=66 NOTE_ON=61 TIME_DELTA=4.0 NOTE_OFF=66 NOTE_OFF=61 NOTE_ON=69 TIME_DELTA=2.0 NOTE_OFF=69 BAR_END BAR_START NOTE_ON=69 TIME_DELTA=4.0 NOTE_OFF=69 NOTE_ON=68 TIME_DELTA=2.0 NOTE_OFF=68 NOTE_ON=66 TIME_DELTA=4.0 NOTE_OFF=66 TIME_DELTA=2.0 NOTE_ON=71 TIME_DELTA=4.0 NOTE_OFF=71 BAR_END TRACK_END TRACK_START INST=32 DENSITY=2 BAR_START TIME_DELTA=2.0 NOTE_ON=37 TIME_DELTA=4.0 NOTE_OFF=37 NOTE_ON=37 TIME_DELTA=2.0 NOTE_OFF=37 NOTE_ON=37 TIME_DELTA=2.0 NOTE_OFF=37 NOTE_ON=37 TIME_DELTA=4.0 NOTE_OFF=37 NOTE_ON=37 TIME_DELTA=2.0 NOTE_OFF=37 BAR_END BAR_START NOTE_ON=37 TIME_DELTA=2.0 NOTE_OFF=37 NOTE_ON=37 TIME_DELTA=4.0 NOTE_OFF=37 NOTE_ON=37 TIME_DELTA=2.0 NOTE_OFF=37 NOTE_ON=37 TIME_DELTA=2.0 NOTE_OFF=37 NOTE_ON=37 TIME_DELTA=2.0 NOTE_OFF=37 TIME_DELTA=2.0 NOTE_ON=37 TIME_DELTA=2.0 NOTE_OFF=37 BAR_END BAR_START NOTE_ON=37 TIME_DELTA=2.0 NOTE_OFF=37 NOTE_ON=37 TIME_DELTA=4.0 NOTE_OFF=37 NOTE_ON=37 TIME_DELTA=2.0 NOTE_OFF=37 NOTE_ON=37 TIME_DELTA=2.0 NOTE_OFF=37 NOTE_ON=37 TIME_DELTA=2.0 NOTE_OFF=37 TIME_DELTA=2.0 NOTE_ON=38 TIME_DELTA=2.0 NOTE_OFF=38 BAR_END BAR_START NOTE_ON=38 TIME_DELTA=2.0 NOTE_OFF=38 NOTE_ON=38 TIME_DELTA=4.0 NOTE_OFF=38 NOTE_ON=38 TIME_DELTA=2.0 NOTE_OFF=38 NOTE_ON=38 TIME_DELTA=2.0 NOTE_OFF=38 NOTE_ON=38 TIME_DELTA=4.0 NOTE_OFF=38 NOTE_ON=40 TIME_DELTA=2.0 NOTE_OFF=40 BAR_END BAR_START NOTE_ON=40 TIME_DELTA=2.0 NOTE_OFF=40 NOTE_ON=40 TIME_DELTA=4.0 NOTE_OFF=40 NOTE_ON=40 TIME_DELTA=2.0 NOTE_OFF=40 NOTE_ON=40 TIME_DELTA=2.0 NOTE_OFF=40 NOTE_ON=40 TIME_DELTA=4.0 NOTE_OFF=40 NOTE_ON=30 TIME_DELTA=2.0 NOTE_OFF=30 BAR_END BAR_START NOTE_ON=30 TIME_DELTA=2.0 NOTE_OFF=30 NOTE_ON=30 TIME_DELTA=4.0 NOTE_OFF=30 NOTE_ON=30 TIME_DELTA=2.0 NOTE_OFF=30 NOTE_ON=30 TIME_DELTA=8.0 NOTE_OFF=30 BAR_END BAR_START NOTE_ON=30 TIME_DELTA=10.0 NOTE_OFF=30 TIME_DELTA=4.0 NOTE_ON=38 TIME_DELTA=2.0 NOTE_OFF=38 BAR_END BAR_START NOTE_ON=38 TIME_DELTA=2.0 NOTE_OFF=38 NOTE_ON=38 TIME_DELTA=4.0 NOTE_OFF=38 NOTE_ON=38 TIME_DELTA=2.0 NOTE_OFF=38 NOTE_ON=38 TIME_DELTA=2.0 NOTE_OFF=38 NOTE_ON=38 TIME_DELTA=4.0 NOTE_OFF=38 NOTE_ON=40 TIME_DELTA=2.0 NOTE_OFF=40 BAR_END TRACK_END TRACK_START INST=24 DENSITY=0 BAR_START BAR_END TRACK_END PIECE_END
TRACK_START INST=36 DENSITY=1 BAR_START BAR_END BAR_START BAR_END BAR_START TIME_DELTA=14.0 NOTE_ON=38 TIME_DELTA=2.0 NOTE_OFF=38 BAR_END BAR_START NOTE_ON=38 TIME_DELTA=2.0 NOTE_OFF=38 NOTE_ON=38 TIME_DELTA=4.0 NOTE_OFF=38 NOTE_ON=38 TIME_DELTA=2.0 NOTE_OFF=38 NOTE_ON=38 TIME_DELTA=2.0 NOTE_OFF=38 NOTE_ON=38 TIME_DELTA=4.0 NOTE_OFF=38 NOTE_ON=40 TIME_DELTA=2.0 NOTE_OFF=40 BAR_END BAR_START NOTE_ON=40 TIME_DELTA=2.0 NOTE_OFF=40 NOTE_ON=40 TIME_DELTA=4.0 NOTE_OFF=40 NOTE_ON=40 TIME_DELTA=2.0 NOTE_OFF=40 NOTE_ON=40 TIME_DELTA=2.0 NOTE_OFF=40 NOTE_ON=40 TIME_DELTA=4.0 NOTE_OFF=40 NOTE_ON=30 TIME_DELTA=2.0 NOTE_OFF=30 BAR_END BAR_START NOTE_ON=30 TIME_DELTA=2.0 NOTE_OFF=30 NOTE_ON=30 TIME_DELTA=4.0 NOTE_OFF=30 NOTE_ON=30 TIME_DELTA=2.0 NOTE_OFF=30 NOTE_ON=30 TIME_DELTA=8.0 NOTE_OFF=30 BAR_END BAR_START NOTE_ON=30 TIME_DELTA=10.0 NOTE_OFF=30 TIME_DELTA=4.0 NOTE_ON=38 TIME_DELTA=2.0 NOTE_OFF=38 BAR_END BAR_START NOTE_ON=38 TIME_DELTA=2.0 NOTE_OFF=38 NOTE_ON=38 TIME_DELTA=4.0 NOTE_OFF=38 NOTE_ON=38 TIME_DELTA=2.0 NOTE_OFF=38 NOTE_ON=38 TIME_DELTA=2.0 NOTE_OFF=38 NOTE_ON=38 TIME_DELTA=4.0 NOTE_OFF=38 NOTE_ON=40 TIME_DELTA=2.0 NOTE_OFF=40 BAR_END TRACK_END