Section : 00:21:692 to 00:35:914
00:24:358 to 00:25:247 feels off, as some of the drums which are mapped here weren't in 00:21:692 to 00:23:469 and is a lot more dense while it's sound the same.
Consider deleting 00:24:358 - 00:25:692 and map 00:24:803 instead as it support drums and the start of the vocals.
Same could be done for consistency at 00:31:914 to 00:32:803 by deleting 00:31:469
Section : 01:57:692 to 02:10:803
This is a tough section to map as kantan, I Don't really understand what instrument you tried to follow here.
I suggest reworking on this section to make it easier to understand by following the drums as it's the most loud and simple rythm for a kantan player.
Here is what i can suggest to make the rythm more easier to understand :
01:59:469 - xx.xxx.xxx..xx.xxx.xxx.xxxx
Simplier version could also be :
01:59:469 - xx..xx..xx..xx.xxx.xxx..xxx
(x represent a note in 1/1 and dot represent not mapped 1/1 ticks)
Feel like structuring should be focused on a bit more. Instead of having a 5 1/1 pattern build up and then a rest moment during vocals, I'd say the build up could use 1 less note so that the vocal get's it's shine, for example:
Instead of keeping a kats at 02:54:137, you can instead remove it and put a note at 02:55:026 + 02:55:471
while i can apply it in 3rd kiai safely, i can't apply it in 1st kiai without Mapset Verifier going angery because 1st kiai is 2/1 longer than 3rd. Final chorus's (3rd kiai) "anata no subete ga" is not mapped there hence it is 2/1 shorter.
a compromise would be to remove 02:54:137/01:03:915 then, add 01:05:693/02:55:915, since its a drum sound to make it 3/1 instead of 4/1. i would to hear your thoughts tho.