00:56:148 (1) - is this supposed to be 1/16? it feels a bit weird, as it's the only instance of a slider like that in the map, and 1/8 is slightly more lenient timing due to how sliderheads work.
If this was intentional, then that's fine I guess. I doubt the target audience would see a big difference in gameplay
01:19:056 (1,2) - maybe map the triple on the tail? or alternatively make the slider just 1/4 longer altogether to fully commit to the vocals. It feels weird to apply 01:19:466 (2) - from the drums but ignore the triple it is part of
\begin{align} \cos(nx) & = \mathrm{Re} \{\ e^{inx}\ \} = \mathrm{Re} \{\ e^{i(n-1)x}\cdot e^{ix}\ \} \\ & = \mathrm{Re} \{\ e^{i(n-1)x}\cdot (e^{ix} + e^{-ix} — e^{-ix})\ \} \\ & = \mathrm{Re} \{\ e^{i(n-1)x}\cdot \underbrace{(e^{ix} + e^{-ix})}_{2\cos(x)} — e^{i(n-2)x}\ \} \\ & = \cos[(n-1)x]\cdot 2 \cos(x) — \cos[(n-2)x]. \end{align}
01:34:056 (1,1,1) - wait why did you change the snapping here? i think 1/4 sounds more accurate
if you insist (1/3 also works when playing) then maybe you need to nerf the spacing between 01:34:238 (1,1) - because 1) it's too large and 2) it makes the triple here doesn't look like a 1/3 one but 1/4
01:34:329 (1) - can raise the sv for this slider to >= 1.2x, currently it feels pretty weak
03:03:238 (1) - should prob end on red tick instead of 1/8
on related note, shoujld 02:56:693 (2) - end on blue too? it's fine as is too though
03:50:147 (1) - probably wrong snare used here accidentally or something, it's big hit instead of the typical blast stuff
03:57:920 (1,2,3,4,5,6,1) - could slgihtly buff this so it's a similar with 03:14:284 (1,2,3,4,5,6,1) -