This robot sailor is fine tuned to play song using a Marimba instrument! The maker Equals Engineering explains the process step by step in the video below, from the construction of the instrument to the code in its channel!
I 3D printed a mini marimba and built a robot to play it for me. The mini marimba ended up to have an ocean vibe since the best mallet for the bars was a float. And then the song choices was easy, “Drunken sailor” and “Wellerman” sea shanties.