Buster Boris Pocket Naumoff is the youngest son of Troy Naumoff, the grown-up behind the kids noise band Electric Fence, and Troy has recorded baby-boy taking a 14-minute space-jazz organ solo. You can, and should, get it here:
Buster Boris Pocket Naumoff: SOLO ORGAN AT FOUR MONTHS
Next time someone mocks you for listening to free-improv music by saying, "My kid could do that!," politely ask: "Really? Have they made any albums? I'd like to check 'em out..."