Hi'
Pretty good set imo, tried to check closely as you requested
I have not found big issues unless maybe in the futsuu x_x
[Kantan]
looks pretty good, the difficulty jump is kinda big in the Kiai but it doesn't matter that much imo.
- 00:11:386 (4) - maybe del ? to emphasize the incoming D.
uum, no change. trumpet strong... I think space will be lonely a little.- 00:59:942 (5,6,7,8) - what about d dkk instead of kk dk ? still fits the vocal and x xxx are easier to handle than xx xx.
make x xxx. colors are k-kdk. Since 00:57:760 (1) part, makes the strategy emphasized ... begin to Blue note .[Futsuu]
- 00:03:205 - 00:11:932 - this part (and the end of the song) needs a rework imo, too different from what the song is. I have 1 idea that will keep it easy to handle for beginners but fits a bit more the song :
the first note is at - 00:03:205 - and the last is at - 00:10:295 -. Also you must remove - 00:10:568 (9) - and - 00:11:523 (11) - to get this part easier. You can call me ingame for more explanation if that screen is too hard to understand.
Apply the same changes to the end of the song ofc.
almost fixed as your suggestion, thanks very much!! 
- 00:59:942 (5,6,7,8,9) - swap colors ? you can also change the following kkd to dkd in case you don't want to get 2 kkd in a row.
no change, same as Kantan.- 01:09:760 (9) - D fits better the surrounding patterns imo.
no change there (followed the trumpet), but fixed next colors kkd>>ddk. (makes a part pure on vocal. I'm not afraid of spread gap. :3) some notes changed by myself.[Muzukashii]
- 00:07:705 (11) - d still sounds better here.
okay.- change - 00:09:477 (3) - to d and remove - 00:10:023 (2) - and - 00:11:386 (6) - ? unecessary d there.
applied, expect for 00:10:023 (2) - (for rhythm smoothing.) sounds really cool ! 
- move - 00:50:260 (7) - to - 00:50:805 - ? it plays better imo, some kkd in a row but it doesn't matter i think.
similar as kantan. this is emphasiezed to Red notes begins. - 01:19:714 (21) - refer to - 00:07:705 -.
okay.[Oni]
No much to say, i would have mapped it differently but consistent style here so much to point.
- 00:07:705 (13) - as in the Muzu.
no change. back base sounds up. I prefer to follow that.- 00:49:987 (6) - maybe del ?
Applied.- 00:50:533 (11) - i would pref this as d and move the next d to - 00:50:805 - but that would miss the vocal x_x as you want.
changed some. triplet place moved. nice suggestion :3/- 00:52:714 (25) - maybe del ?
yes.- 00:59:396 (12) - refer to - 00:50:533 - i guess.
changed some.- 01:19:714 (25) - refer to - 00:07:705 -.
Same.[Inner Oni]
Looks good again x_x
- 00:11:591 (2) - d ? melody
no changes, this simple stream sounds better to me (percussion).- 00:30:896 - another finisher could be added here. (i have not pointer it in the Oni so you can make a gap if you add it here.
keep. if put , vocal sounds unclear a little. I guess it's the best a state.
- move - 00:49:646 (2) - to - 00:49:510 - ? k ddd d plays better imo x_x. [color=#0000FF] no changes, for vocal smoothing 
- 00:50:669 (1) - k instead of d ?
Same as Kantan.- move - 01:04:919 (2) - to - 01:04:783 - ? plays better again + this will reflect the k d ddd k earlier.
changed before triplet patterns._ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Good luck'
Thanks 
;;;
