Donny Chen is a musician, piano teacher, and piano tuner. That would explain the epic mastery behind this phenomenal LEGO instrument. I’m a piano player myself, and grew up fascinated with the inner-workings of our own (life-size) grand piano. I must say, this little marvel is basically the complete package!
While it doesn’t have all 88 keys that a real grand piano would have, it does have a very similar mechanism.