Overall, the improvisational techniques used in the Oni are such that A) It is hard to tell what is overall trying to be achieved, and throughout different parts of the song, emphasis is switched abruptly from vocal to background, then back to vocal and B) it is uncomfortable to play as what is being plotted doesn't have any real match to what's prominently going on imo.
A primary example of A starts at 02:08:197 - . 02:08:702 (134,135,136,137,138,139,140) - are all clearly following the rhythm, but in this same verse the focus immediately shifts on to the vocal starting at 02:10:219 (141,142,143,144,145) - creating incoherent phrases and patterns. To focus on the drums would look like this:
https://puu.sh/xHOex/88a8cfdf79.png , and to focus on the vocal would look like this:
https://puu.sh/xHOkb/78a77b5271.png . These schemes are completely different, and the way you merged them together fails to sound correct or play comfortably. Furthermore, you follow the vocal at 02:19:320 (178,179,180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215,216,217,218,219) - , which then creates inconsistency as the vocals present in both parts are the exact same.
More on point A, this particular song doesn't support the improvisation used in the 4th, 5th, or 6th kiais. 02:43:927 (84,85,86,87,88,89,90,91,92,93,94) - Parts like this, where the last 3 notes have little music support, and 84-91 are following vocals that are emphasized, not light, makes the use of improvisation inappropriate. 02:42:578 (73,74,75) - and 02:43:252 (78,79,80,81,82) - are appropriate because 73-75 emphasize "quiero" in that one beat of music, and 78-82 emphasize "desnudarte a besos" in that one beat of music. The music after those lyrics repeats "Despacito," but as this word is once again HEAVIER than the lyrics before it, there's no reason this 1 word should receive more density than the rest of the phrase. Similar comments can be made for patterns like 02:50:837 (140,141,142,143,144,145,146) - or 03:02:635 (80,81,82,83,84,85,86) - .
Point B is really a summary of everything that's already been written, these weird uses of improvisation makes the map REALLY awkward to play, as personally, and now I'm finding out other people feel the same way, there's a huge lack of flow, and once again, it's so hard to tell what is trying to be followed. The switches are so abrupt and so uncomfortable that quite honestly, it makes me not want to play the map all together, even for fun.
(edited to clarify points as I think some of what I wrote before confusing)
(editing again to remove some apparently condescending remarks)
