NHKyx has been played on NTS shows including E. Myers, with Ancient Behave first played on 16 May 2025.

NHKyx is Kouhei Matsunaga AKA Koyxen's solo alias The NHK project started in 2006 with Toshio Munehiro and debut in 2008 on Raster noton, album yx aka 1ch aka solo released for Skam records is a collection of Kouhei's solo work chosen over a number of years.