One of Jude's favorite songs since forever is Twinkle Twinkle. I sing it, he sings it. For his birthday we got him a glockenspiel. Mostly he just bangs on the bars but the other day he actually played the first line of Twinkle Twinkle. I did not show him this, Aaron did not show him this. He figured out the notes and played it by ear.
Maybe his middle name should have been Mozart.