The Met just held a hackathon, and a team with no coding experience won it by shipping a working interactive exhibit in a couple hours. They built an "Instrument Explorer" for the Asian Art wing. Scan a Han Dynasty painting of musicians, the app identifies the xiao, a Chinese wind instrument from 200 BCE. Then you play it on your phone. Hold to blow, tap to switch notes. Pluck the strings on a Tang scroll and you get tuned pitches with realistic decay. Sponsored by Anthropic, built with…