Interesting.
I stopped following MaiR for a long time. But now she might be one of the clearest examples of improvement in singing I have seen in a vtuber.
Here is her singing Melody from 2022 (completely flat).
https://www.youtube.com/watch?v=IONLktAUroU&t=1272sAnd now, much better.
https://www.youtube.com/watch?v=hg-iQy9-Mqw&t=1445sLooking at other tracks, she hasn't suddenly become a top tier singer just yet. But on this song, she has gone up by leaps and bounds.