Kamimura participated in the "LABVERDE SPECULATIVE ECOLOGIES RESIDENCY 2023," a residency program held in Manaus, Brazil, in the summer of 2023. This program brought together international artists, Brazilian artists with indigenous roots, local scientists, activists, and philosophers to share knowledge, culture, and art related to environmental issues and Earth's ecology. During the program, Kamimura conducted field recordings in the Amazon rainforest, the Balbina Dam, Rio Negro, and the Amazon River.
As a result of his fieldwork, he presented a recording piece, "The Disorderly Harmony Orchestra,” awarded the SOUND of the Year AWARDS 2023, Best Natural Sound Category. This soundscape was recorded at midnight rainforest and contains not only the natural sounds of the Amazon rainforest; it incorporates ceremonial sounds created by the forest's Indigenous people. These ceremonial sounds form a unified orchestra, resonating with the countless birds, insects, flora, fauna, and troops of monkeys in the Amazon. Moreover, the orchestra attempts to harmonise even with the thunderous roar of a somewhat forceful aeroplane engine flying overhead. The orchestra may be trying to include it as a companion or expressing some significance in response to that roar. It felt like a special ritual, exploring new sounds of nature in this modern era where the boundary between nature and humanity has blurred.