Otsuka, Takuma, Kazuhiro Nakadai, Toru Takahashi, Kazunori Komatani, Tetsuya Ogata, and Hiroshi Okuno. 2010. “Design and Implementation of Two-Level Synchronization for Interactive Music Robot”. Proceedings of the AAAI Conference on Artificial Intelligence 24 (1):1238-44. https://doi.org/10.1609/aaai.v24i1.7734.