User blog comment:IStoleOumasPanta/40 ways I've been triggered by Vocaloid/@comment-34754462-20180824023352/@comment-53539-20180824092622

2. But Kaito is a Baritone/tenor... O.O

Okay here is the thing, male vocals are the lowest pitched vocals one can get that can still be used for singing. Bass is the lowest, followed by Baritone and Tenor. Contrallo is the pitch in females that comes close to Tenor and many are nick named "female tenors". The highest a male vocal can go is Alto naturally, though if your going that high you might as well have a female singer because the range and pitch are normally better.

What often happens is that Kaito is pitched too high, essentially since Lily its been noted that because Miku can handle high notes, often producers try and use ALL Vocaloids the same. In short Kaito is not always used as a tenor/baritone and people will try and use him for soprano, even among the Japanese fandom. I've recently responded to someone on DA trying to counter explain the issues with Kaito in Soprano mode.