Ruins is a bass-&-drum duo that formed in Tokyo, Japan, in 1985. They are usually pigeonholed into the category of progrock.The only constant member of Ruins is the drummer/vocalist Tatsuya Yoshida (吉田達也, Yoshida Tatsuya), who hascycledthrough four different bassists since the band’s inception.They are known for their rapidly shifting and complex rhythms and for often sounding like five artists instead of two.Bothmembers sing/shout/twist vocal chords in an artificial language created by Yoshida, in much the way that Magma (adefiningmusical influence) used the Kobaïan language.