

They grew a brain organoid from his donated blood white cells that they turned into stem cells. The brain organoid produces electric impulses because that’s what brain cells do. They made something artsy out of those impulses. So it’s completely unrelated to whatever experience the musician could have had. DNA doesn’t store acquired skills nor life memories. They could do that with anyone’s cells and probably get a similar result.
I believe by that time they were still going by the name of The Belittles.