In 1984, Hosono, Sakamoto and Takahashi decided stop working together as Yellow Magic Orchestra, deciding to return to their solo careers, though they each would occasionally join one of the other two in concert as a guest performer. Though they stopped playing together, however, they were careful to not officially 'break up' the group, instead using a Japanese term meaning "spreading out".
In 1993, the trio briefly reunited for Technodon. However, to avoid lawsuits and to avoid ending the "Yellow Magic Orchestra is spreading out" status of the group, that album was credited it to Y̶M̶O̶, rather than to Yellow Magic Orchestra.
In the early 2000's, Hosono and Takahashi reunited in a project called Sketch Show. Sakamoto occasionally also joins them for performances; when Sakamoto performs with Sketch Show, the trio took on a new, different name - Human Audio Sponge. Human Audio Sponge was always a one-off type of group, however, whereas Sketch Show was a formal group.
In mid-2007, Human Audio Sponge performed as Yellow Magic Orchestra for the first time since the original breakup, as part of the 2007-07-07 Live Earth concerts.
In August of 2007, Hosono, Sakamoto and Takahashi decided to make the reformed Yellow Magic Orchestra official again, but using a new name, combining both of the previous names the trio had used - "Human Audio Sponge and Yellow Magic Orchestra", aka: HASYMO.
Yellow Magic Orchestra (abbreviated as YMO) is a Japanese electronic music band consisting of principal members Haruomi Hosono (bass, keyboards, vocals), Yukihiro Takahashi (drums, lead vocals) and Ryuichi Sakamoto (keyboards, vocals). For their early studio albums and live performances, the band was often accompanied by music programmer Hideki Matsutake.
Each of its members were seasoned veterans of the music industry before Hosono formed the band as a one-off exploration of computerized exotica, initially paying tribute to performers such as Les Baxter and Martin Denny while also parodying Western conceptions of the orient. Over the course of YMO's career, the group continued to embrace new technologies, fusing them with classic pop forms, and indulging in sociopolitical, technological, or musical subversion.
They are often considered influential innovators in the field of popular electronic music. They contributed to the development of synthpop, ambient house, electronica, electro, contemporary J-pop, house, techno, and hip hop music. More broadly, their influence is evident across various genres of popular music, including electronic dance, ambient music, chiptune, game music, and pop music.
YMO were pioneers in their use of synthesizers, samplers, sequencers, drum machines, computers, and digital recording technology in popular music, during a time when these technologies were seen as novelties. The band is considered "ahead of their time," for anticipating the global trend towards drum machines and sampling, for having anticipated the "electropop boom" of the 1980s, their "pro-technological viewpoint," their use of video game sounds and bleeps, and for experimenting heavily with computers and electronic instruments.