20....abt.f............9.00 43..............g......2.00 53............f.........6.00
59..............f......6.00 63..........vg......4.00 82............g.......2.00 83..............f......6.00
87........vg...........4.00 98........vg...........3.00 99...........vg......3.00 106...........f......4.00
112...........f......3.00 118.............f......3.00 127..........vf........5.00
136.........vf.....6.00 138...........g......1.00 139...........f......3.00 140.............f......3.00
144.........vf......14.00 145...........f......6.00