キライ ♡ スキ

isn't jpg, jpeg, pdf, or png

Is a file extension you don't recognise (this one is a visual basic file, used for scripting, but others like exe or bat are used)

has a very low or unexpected file size (this one's is less than 1KB, or 0.001MB, a good reference should be at least 500KB)

🍰

autumn wind 1 + 2

Not only does the child have the rhythm and their part down precisely, but also, they are clearly doing the very-small-child thing of reserving exactly nothing.

Children have to learn not to use all of the force they're capable of, adults mostly never use all of the force they are capable of, but here someone has given this child exactly the opportunity to use all of the force their body can produce, and do it musically.