00:00:750 (750|1) - this doesn't need to be 3-chord at all. it's in fact weaker than other sounds. Delete this note.
In fact, I would delete all 3-chords in this map. They are too heavy and don't work here. 2-chords suffice
(that's a normal diff anyway)
I won't point the 3-chords from now on, you just should delete them.
00:04:875 (4875|0,4875|3) - delete one of the notes, it's a single sound
00:07:875 (7875|3) - another unneeded note. Also I don't like the fact that you use
COPYPASTE!!!!!!!!!!!!!!!!!Please remap this beginning because it's awful at the moment, this copypaste is disgusting :/
00:16:875 (16875|0) - this note is unneeded too
00:18:750 (18750|2,18750|3,18750|0,20250|0,20250|1,20250|3,21750|3,21750|0,21750|1,23250|2,23250|0,23250|3) - those 3-chords are actually ok, you don't have to delete notes from them
00:33:000 - you forgot a note on 1 here
00:49:500 (49500|3) - delete, it's the same sound as all other
00:54:000 (54000|3) - delete this one too, it's single sound
00:55:125 (55125|0) - move to 2
00:55:875 - on the contrary, you forgot a note here - there's a piano chord
00:57:000 - single sound
00:58:500 - 01:00:000 - 01:03:000 - 01:07:500 - another unneeded notes in those chords
01:02:250 (62250|3,62250|1,62250|0,62625|0,63000|2,63000|3) - change this placement a bit, it's weird.
01:04:125 (64125|3,64875|2,65250|1,65250|2,65625|1,66000|1) - this too
01:05:250 (65250|1,65250|2,65250|3,66000|3,66000|0,66000|1,66750|2,66750|0,66750|3) - those are in fact single sounds but they should be AT MOST doubles, I would map all of them single note to be honest
01:12:000 (72000|0) - delete
01:33:750 (93750|0,93750|2,93750|3) - there's a grace you missed
check it out
01:36:375 (96375|2,96375|1) - delete one note
01:36:750 (96750|1,96750|3,96750|0) - this 3-chord is okay
01:37:500 - 01:39:375 - 01:42:000 - 01:42:375 - 01:43:500 - 01:45:375 - 01:46:875 - 01:48:375 - 01:49:500 - 01:51:375 - 01:52:875 - 01:54:375 - 01:55:500 (115500|3,115500|2,115875|0,115875|1) - 01:57:375 - 01:58:500 (118500|3,118500|2,118875|1,118875|0) - 02:00:000 (120000|0,120000|1,120375|2,120375|3) - all of those are unneeded chords.
In fact I think it would be better if you remapped this chorus considering the actual piano sounds. It's a little work but it will be a better map.
02:04:875 - unneeded note
02:06:750 (126750|3,126750|2,126750|0,128250|1,128250|3,128250|0) - those triples are ok too