Add a 8-bar ROCK ACOUSTIC BASS track in the following composition:
PIECE_START TIME_SIGNATURE=4_4 GENRE=ROCK KEY=A BPM=86.58404541015625 CP=F#m_Bm_A_F#m7_E BARLENGTH=8 INSTLIST=53_33_65_81_0_29 TRACK_START INST=53 DENSITY=0 BAR_START BAR_END TRACK_END TRACK_START INST=65 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 TIME_DELTA=14.0 NOTE_ON=66 TIME_DELTA=2.0 NOTE_OFF=66 BAR_END BAR_START NOTE_ON=69 TIME_DELTA=2.0 NOTE_OFF=69 NOTE_ON=66 TIME_DELTA=2.0 NOTE_OFF=66 NOTE_ON=69 TIME_DELTA=2.0 NOTE_OFF=69 NOTE_ON=66 TIME_DELTA=2.0 NOTE_OFF=66 NOTE_ON=69 TIME_DELTA=2.0 NOTE_OFF=69 NOTE_ON=66 TIME_DELTA=2.0 NOTE_OFF=66 TIME_DELTA=2.0 NOTE_ON=66 TIME_DELTA=2.0 NOTE_OFF=66 BAR_END TRACK_END TRACK_START INST=0 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=81 DENSITY=1 BAR_START NOTE_ON=83 TIME_DELTA=2.0 NOTE_OFF=83 NOTE_ON=82 TIME_DELTA=2.0 NOTE_OFF=82 NOTE_ON=81 TIME_DELTA=2.0 NOTE_OFF=81 NOTE_ON=80 TIME_DELTA=2.0 NOTE_OFF=80 BAR_END BAR_START BAR_END BAR_START BAR_END BAR_START BAR_END BAR_START BAR_END BAR_START NOTE_ON=83 NOTE_ON=71 TIME_DELTA=2.0 NOTE_OFF=83 NOTE_ON=83 TIME_DELTA=2.0 NOTE_OFF=83 NOTE_ON=83 TIME_DELTA=2.0 NOTE_OFF=83 NOTE_ON=83 TIME_DELTA=2.0 NOTE_OFF=83 NOTE_ON=83 TIME_DELTA=2.0 NOTE_OFF=83 NOTE_ON=83 TIME_DELTA=2.0 NOTE_OFF=83 NOTE_ON=83 TIME_DELTA=2.0 NOTE_OFF=83 NOTE_ON=83 TIME_DELTA=2.0 NOTE_OFF=71 NOTE_OFF=83 BAR_END BAR_START NOTE_ON=83 NOTE_ON=71 TIME_DELTA=2.0 NOTE_OFF=83 NOTE_ON=83 TIME_DELTA=2.0 NOTE_OFF=83 NOTE_ON=83 TIME_DELTA=2.0 NOTE_OFF=83 NOTE_ON=83 TIME_DELTA=2.0 NOTE_OFF=83 NOTE_ON=83 TIME_DELTA=2.0 NOTE_OFF=83 NOTE_ON=83 TIME_DELTA=2.0 NOTE_OFF=71 NOTE_OFF=83 NOTE_ON=83 NOTE_ON=73 TIME_DELTA=2.0 NOTE_OFF=83 NOTE_ON=83 TIME_DELTA=2.0 NOTE_OFF=73 NOTE_OFF=83 BAR_END BAR_START BAR_END TRACK_END PIECE_END
TRACK_START INST=33 DENSITY=2 BAR_START NOTE_ON=40 TIME_DELTA=2.0 NOTE_OFF=40 NOTE_ON=42 TIME_DELTA=2.0 NOTE_OFF=42 NOTE_ON=42 TIME_DELTA=2.0 NOTE_OFF=42 NOTE_ON=42 TIME_DELTA=2.0 NOTE_OFF=42 BAR_END BAR_START BAR_END BAR_START BAR_END BAR_START NOTE_ON=33 TIME_DELTA=2.0 NOTE_OFF=33 NOTE_ON=33 TIME_DELTA=2.0 NOTE_OFF=33 NOTE_ON=45 TIME_DELTA=2.0 NOTE_OFF=45 NOTE_ON=45 TIME_DELTA=2.0 NOTE_OFF=45 NOTE_ON=33 TIME_DELTA=2.0 NOTE_OFF=33 NOTE_ON=33 TIME_DELTA=2.0 NOTE_OFF=33 BAR_END BAR_START NOTE_ON=33 TIME_DELTA=2.0 NOTE_OFF=33 NOTE_ON=33 TIME_DELTA=2.0 NOTE_OFF=33 NOTE_ON=45 TIME_DELTA=2.0 NOTE_OFF=45 NOTE_ON=45 TIME_DELTA=2.0 NOTE_OFF=45 NOTE_ON=33 TIME_DELTA=2.0 NOTE_OFF=33 NOTE_ON=30 TIME_DELTA=2.0 NOTE_OFF=30 NOTE_ON=30 TIME_DELTA=2.0 NOTE_OFF=30 NOTE_ON=33 TIME_DELTA=2.0 NOTE_OFF=33 BAR_END BAR_START NOTE_ON=35 TIME_DELTA=2.0 NOTE_OFF=35 NOTE_ON=45 TIME_DELTA=2.0 NOTE_OFF=45 NOTE_ON=47 TIME_DELTA=2.0 NOTE_OFF=47 NOTE_ON=28 TIME_DELTA=2.0 NOTE_OFF=28 NOTE_ON=30 TIME_DELTA=2.0 NOTE_OFF=30 TIME_DELTA=2.0 NOTE_ON=37 TIME_DELTA=2.0 NOTE_OFF=37 NOTE_ON=33 TIME_DELTA=2.0 NOTE_OFF=33 BAR_END BAR_START NOTE_ON=35 TIME_DELTA=2.0 NOTE_OFF=35 NOTE_ON=45 TIME_DELTA=2.0 NOTE_OFF=45 NOTE_ON=47 TIME_DELTA=2.0 NOTE_OFF=47 NOTE_ON=28 TIME_DELTA=2.0 NOTE_OFF=28 NOTE_ON=30 TIME_DELTA=2.0 NOTE_OFF=30 NOTE_ON=40 TIME_DELTA=1.0 NOTE_OFF=40 NOTE_ON=42 TIME_DELTA=1.0 NOTE_OFF=42 NOTE_ON=38 TIME_DELTA=2.0 NOTE_OFF=38 NOTE_ON=33 TIME_DELTA=2.0 NOTE_OFF=33 BAR_END BAR_START NOTE_ON=33 TIME_DELTA=2.0 NOTE_OFF=33 NOTE_ON=33 TIME_DELTA=2.0 NOTE_OFF=33 NOTE_ON=45 TIME_DELTA=2.0 NOTE_OFF=45 NOTE_ON=45 TIME_DELTA=2.0 NOTE_OFF=45 NOTE_ON=33 TIME_DELTA=2.0 NOTE_OFF=33 NOTE_ON=33 TIME_DELTA=2.0 NOTE_OFF=33 BAR_END TRACK_END