There are multiple artists with this name: a Japanese prog-rock duo, an Australian black-metal band, a German thrash-metal band, a new wave band, a Canadian ska band, and a Chinese rock band. 1) Ruins is a bass-&-drum duo that formed in Tokyo, Japan, in 1985. They are usually pigeonholed into the category of prog rock. The only constant member of Ruins is the drummer/vocalist Tatsuya Yoshida (吉田達也, Yoshida Tatsuya), who has cycled through four different bassists since the band’s inception.