(Preface: I have played the original map and a 1/6 version of it.)
----------------------------------------------------------------
tl;dr: all 3/16 -> 1/6 snapping
How was the 3/16 snap derived? If you're going to say that 1/6 isn't correct then how do you know 3/16 is correct? Just because it's the next available snap? A "better feeling" snap doesn't imply it's correct at this precise level of snapping. How do you know the snap isn't +1ms or -1ms from 3/16, or more? Musically speaking you are putting yourself in a very strange position because you can't really prove what the correct snapping should be.
I think there is a
far greater burden of proof to demonstrate that 3/16 is the true rhythm for this song and it hasn't come close to being met yet. In terms of music theory it is such a crazy idea that is just being accepted here as though it's not crazy. Name any other song that has 3/16 rhythms and has a swing-feel to it? I can't think of one.
Musically speaking 3/16 doesn't make mathematical sense for this song. This song has a swing-feel so it is devised into 1/3, 1/6, 1/12, etc. It would be highly unlikely to encounter a 3/16 rhythm in a swing-feel jazz song. So why would it occur here in an anime song? It seems most likely that this isn't the case.
Skylish wrote:
To be fair, this song is alike to Yumemiyo Otome, vocal has a certain delay everywhere, while the instrumental part is concrete solidly.
Yeah that map isn't snapped correctly either. Using rhythms other than 1/3, 1/6, 1/12, etc. in a swing-feel song is pretty rare and also pretty obvious when it happens. Based on that map you mislead yourself into believing that the vocals had common time rhythms, and that is probably the case for this song too.
Skylish wrote:
Let's say: 00:01:291 (6) - this is in 3/16. If I use 1/6 beat snap: it will fall at 00:01:303 - (this is what I got at the very first stage while mapping). I feel that it's a bit late already, it's not noticeable in game play, and match our common sense of off-beat patterns. However, 3/16 is more accurate.
Maybe you think that this 12 ms difference are not so noticeable, so just using 1/6 is fine and suits players' expectation. Here's another issue: the overall rhythm feeling in these so called 1/6 doublets will be a bit rushy. (and this was how I figured that 1/6 might not be correct after the first trial). I don't know how to explain that rushy feeling, but there it is in the case of 1/6 instead of 3/16.
Just because 3/16 "feels" better than 1/6 doesn't mean it actually is 3/16. Your senses are probably just wrong, plain and simple. If they were right, that would mean you are aware of an almost nonsensical rhythm in song that is ahead of its time. This seems unlikely, and you'd need to provide substantial proof. Additionally 25% playback speed isn't completely reliable for determining proper snapping this precise. 25% playback speed can't be fully conclusive for determining if 3/16 is correct here because we're talking about a very small difference in snapping and it would be too subjective.