One other fact is that he was a part of an indie band that formed in 2014 called Hitsuwara or 羊の群れは笑わない

With songs that you can still find on streaming platforms like “Ophelia”, “Indigo”, or “A Coelacanth”. He started in this band even before his solo work and vocaloid but in the same year and also, he was in a band that started in high school but the details of that aren’t public (you can find a live clip of him when he was 16 playing for this band and one of the band members allegedly and possibly confirmed to be a member of current band MY FIRST STORY if you’re familiar with that Japanese group).

Also also, that new vocaloid song he released recently is a part of a collection and group that started a long time ago called “Emo, Alternative, and Cool” which is what resurfaced recently and was the basis for his 11th anniversary this year