00:20:045 - I think it is better to make it double than 00:19:827 (19827|1) - https://osu.ppy.sh/ss/17716942/8f48
sure
01:26:535 (86535|0) - wrong snap https://osu.ppy.sh/ss/17716946/ecf5
wrong timestamp? or wrong screenshot?
I did not understand correctly at first what you wanted to highlight, if you follow the drums, then there is 1/2, and if the sound, then 1/4 as you did
it's follow the melody sound
01:38:371 - mb add note ?
√
01:44:590 - note missing , because it is a discrepancy with 01:42:735 (102735|0.102844|2.102953|1) -
changed the way for this place, it will move some of notes.