Should slighlty buff density for kiais because currently density same with whole diff.
ex. 00:10:399 (1,2,3,4,5) - vs 00:25:241 (1,2,3,1,2,3) - song instensity different but density is pretty similar
00:42:610 (1,2,3,4) - 01:25:873 (1,2,3,4,5) - same
i'd recommend add some 1/2 in kiais to provide a difference between kiais and other sections.