Have you already done the finding something you want him to see/think he might be interested in on Youtube and see how long he can sit still for? I remember when middle child was a toddler (somewhere between 2 and 4) she got really interested in the sugar plum fairy somehow so I sat her down to watch The Nutcracker. Not expecting her to sit through the whole ass ballet she just sat on my lap in front of my computer.
And that was my error.
And it got compounded by me thinking surely she'll get bored soon and not just moving to the tv as that's a pain to do anything on XD
Otherwise are there classical concerts aimed at kids in his age range? I seem to vaguely remember some being around from ages ago but I don't remember if we didn't get into it because it clashed or just from straight up lack of money.
I vaguely remember something about music and brain development. Brains and bodies are so weird and fascinating and I always wonder how we can know so much about them and yet it still feels like nothing at all XD
