HOAHIO produced quirky interesting music. The frantic koto, plus noisy samples and gasping vocals, or melodic koto, peaceful drones, and pleasant singing. I enjoyed this quite a bit, the noisy parts particularly. That's a toothbrush on a microphone in the second to last picture.
HACO on voice, theremin, effects, SACHIKO M on sampler, MICHIYO YAGI on koto