Anyone who spends a little time around children will quickly see that some have better hand eye coordination and are good at catching balls, some have an excellent sense of smell, some do very well with numbers, some can draw people's faces with little training, etc.

Here is a list of things you can objectively measure to determine which children have innate musical talent.

And it doesn't matter a great deal either. Innate talent plus no work will get you nowhere. No talent and work will get you somewhere although maybe not to the top.

https://www.aimm.edu/blog/is-musical-talent-innate-or-acquir...