Yamazaki began home recording in 1987. He took the name Masonna for his solo noise project, and at the same time set up the independent label Coquette, on which he released several cassettes. Between '89 and '90, his debut LP and CD were released on the Kyoto-based label Vanilla Records. In addition, he gradually cemented his reputation on the underground scene through extremely limited (between 1 and 10 copies) 7" acetate releases cut on a portable cutting machine, a bootleg LP (split with Violent Onsen Geisha) on RRR (USA), and many appearances on compilations from both Japanese and overseas noise labels such as Beast 666 (Japan) and Unclean Production (Germany).