Man Spends 6 Months Teaching An Octopus To Play Piano

November 17, 2025

A Swedish engineer and musician (and YouTuber) decided to teach an octopus to play the piano — and he succeeded.

Known for his wild musical experiments and inventive tutorials, Mattias Krantz took on his most ambitious challenge yet. Six months of patience, engineering, and out-of-the-box creativity led to a video that has the internet questioning everything we thought we knew about both cephalopods and music theory.