On Zeni Geva (here):
Zeni Geva indulged in dissonant and gloomy orgies, in the tradition of early Swans and Big Black (but with no bass), on albums such as Maximum Money Monster (1990), Desire For Agony (1993), and especially Total Castration (1992). Null’s solo work, notably Absolute Heaven (1994) and Ultimate Material II (1995), continued to straddle the border between extreme noise and very extreme noise.
Merzbow, the brainchild of Masami Akita, one of the most prolific musicians of all times (not a compliment), was a theoretician of surrealism in music but practiced a form of savage violence that was more akin to a suicide bombing on non-musical works such as Rainbow Electronics (1990), Music For Bondage Performance (1991), Venereology (1994) and Tauromachine (1998).
…Merzbox (1997) is a box of 50 CDs that “summarizes” his career, when he has just passed the record of the 200th album. It includes 30 reprints of CDs, LPs and cassettes, as well as 20 unreleased albums.
…It is difficult to tell Whether Dharma (2001) is a masterpiece or another Merzbow self-parody … but maybe that’s precisely what Merzbow is all about. One of their most savage noise recordings, it includes the massive (32 minutes), gargantuan, arcane musique concrete of “Frozen Guitars and Sunloop / 7E 802,” that after eight minutes turned into a maelstrom exuding a sense of desperation and after sixteen enters an endless free fall, besides the crescendo of “I’m Coming to the Garden No Sound No Memory,” that achieves a screeching intensity, the nuclear carpet bombing of “Akashiman,” and the eight-minute chamber composition “Space Plan For Marimo Kitty” for random piano notes and alien electronic interference.
By the same token, on Frog (2001), a sequence of variations on frogs, Masami Akita seems to make fun of the fans who take him seriously.