There are two Rayuelas, the first one was a short-lived Argentine Progressive Rock band that released their sole album in 1978. The second Rayuela: Guillaume Contré a.k.a. Rayuela started producing electronic music a few years ago. His pieces are mixing a background from his work in the acousmatic/electro-acoustic music field, with various elements of minimal techno, IDM and electronica.
His work focus on integrating his large musical willingness, embracing a wide experience in various sonic context, through the filter of a weird but tangible & groovy minimal techno.