chains overall are pretty questionable here and i feel they could be broken a little to prevent spamming 7-8obj chains for whole diff
here's some examples of stuff that i'd remove in order to make difficulty look less clogged of long chains:
00:10:814 (4,5) - i'd suggest to change reverse slider here for notes, because end of this slider does not have any sounds
00:16:141 (3) - removing this note would benefit on showing repetitive rhythms with two separate patterns instead of one chain
00:19:971 (8,1,2,3,4,5,6,1) - 8 objects chain is a bit too much, could be shortened by changing (2) to note, because vocals here are not prolonged and expressing them with just note would be fine enough.
+this chain blends music layers too much in contrast with 00:09:316 (8,1....) -
here's an example of rhythm i'd suggest. +added 1/2 slider for vocal that would emphasize it nicely