A ridiculous premise makes a great story. Swedish engineer and musician Mattias Krantz got a wild hair and decided he was going to teach an octopus how to play the piano. He went to the seafood market and selected a likely student. He named the octopus Takoyaki, which is a snack made of fried octopus, or Tako for short. Krantz set up an aquarium and became friends with Tako, then realized he had no idea what he was doing. How do you teach an octopus to play piano?
It was a matter of getting to know the octopus. Then Krantz had to design a piano that harnessed Tako's abilities and interests. He had to remake the piano over and over as he learned what worked and what didn't, in a process that took six months. For a creature with eight arms, Tako is no Rachmaninoff, or even Victor Borge, but he can play his weird custom instrument and seems to enjoy it. The video is 18 minutes long, but you will fall in love with Tako, and Krantz's learning process is rather amusing (with plenty of F-bombs). -via Metafilter