Talk:OLIVER/@comment-2A00:23C4:4D05:9A00:A5E9:F2F9:8F73:637A-20170912172345/@comment-53539-20170912191318

No, their projects are very different.

Len is a character vocal vocaloid, he is voice acted by an adult female vocalist and is not a professional singer for this reason.

Oliver is voiced by a young boy of a similar age, intended to be a young male choir vocal.

One is Japanese, the other English. Len got his English later, but the range is more limited and is not a native English vocal and is suspected to be version of the Rin vocal, just edited to save time.