To me, only soul memory after being reincarnated can explain how a 5-year old asks to play the violin, and by 10, is able to play at such a high level of competence that I am reminded of Vengerev, a Russian violinist. Vengerev plays the violin in a manner which he claims reflects the intention of the composer. I found his style most impressive.
There have been so many examples of little children, normally under the age of 6 to 8, who display musical skills of a very high level, to suggest that their souls simply required expression in their current lives.
I am inclined to this view not only because of the very substantial evidence of past-life memories of children all over the world, obtained by competent researchers, but also by intimations of my past life as a Muslim warrior (confirmed by a clairvoyant spontaneously) – while I remain a metaphysical Hindu in this life. Explanation? Replace war with peaceful consultation and co-operation. I am still learning.
Here are 2 examples of past skills surfacing early in life, which I obtained from the Internet (“Are child prodigies evidence of reincarnation?”)
“ Akrit Jaswal is a Punjabi adolescent who has been hailed as a child prodigy who has gained fame in his native Punjab (India) as a physician, despite never having attended medical school.”
“Kim Ung-Yong was a guest student of physics at Hanyang University from the age of 3 until he was 6.. At the age of 7 he was invited to America by NASA.. He finished his university studies, eventually getting a Ph.D. in physics at Colorado State University  before he was 15. In 1974, during his university studies, he began his research work at NASA and continued this work until his return to Korea in 1978.”