Strange electromechanical musical instruments

Here is a fun demonstration video of Japanese machine artist Nobumichi Tosa's bizarre electromechanical musical instruments. From a description of Tosa's work on

Maywa Denki is an art unit produced by Nobumichi Tosa. It was named after the company that his father used to run bygone days. Its unique style is indicated by a term he uses: for example, each piece of Maywa Denki's work is called "a product" and a live performance or exhibition is held as "a product demonstration." The products produced so far include "NAKI Series," fish-motif nonsense machines, "Tsukuba Series," original musical instruments, and "Edelweiss," flower-motif objet d'art. Although Maywa Denki is known and appreciated as an artist, its promotion strategies are full of variety: exhibition, live stages, performances, producing music, videos, writing, merchandising toys, stationery, and electric devices.

Link to Maywa Denki video
Link to (Thanks, Vann Hall!)