00:15:911 (3,1,2,3) - remove 1's nc, move 1 and 2 back in the timeline by 1 tick
s
00:16:340 (3) - there's a strong syllable on this sliderend
00:29:197 (1,2,3,4,5,1,2,1,2,1,2,1,2,3,1,1) - this might not be obvious but you should map all the notes in a layer of the song you're trying to map, otherwise in places like these, the rhythm feels off and misrepresents the song