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.
They are known for their rapidly shifting and complex rhythms and for often sounding like five artists instead of two. Both
members sing/shout/twist vocal chords in an artificial language created by Yoshida, in much the way that Magma (a defining
musical influence) used the Kobaïan language.