By the way I checked his range again. It's E2 to G5. It's E1 like you said because European musical notation is actually 1 octave lower than in the West, not sure why.. I just remembered a couple of days ago because I remember happening the same thing with Mariah's range, and they were all like in different notations so I was like this ain't right. So I was explained that in Europe that's how they do it.
But E2 is god damn low
.
So his range is 3 octaves and 2 tones