This video captures a performance of Symphony No.9, Boogie, by Matryomin Ensemble “Da”.
The Matryomin is a Matryoshka doll theremin, created by Japanese thereminist Masami Takeuchi. It consists of a miniature pitch-only theremin, encased in a Russian matryoshka doll.
The ensemble features 167 Matryomin players. The performance was recorded at auditorium of Jiyugakuen Myonichikan in Tokyo on 22 Jan. 2011.