Lost for two decades, the recent rediscovery of Landscape Tantrums, the first attempt at recording the music that would become The Mars Volta's De-Loused in the Comatorium, revealed an important and hitherto missing chapter in the group's evolution. Self-recorded by Omar (assisted by Jon DeBaun) at Burbank's Mad Dog Studios within a head-spinning four days, Landscape Tantrums captures De-Loused in somewhat embryonic form, though much of what would make The Mars Volta's debut album such an electrifying, sublime experience was already in place: the fearless invention, the fusion of futurist rock elements and traditions from outside of the rock orthodoxy, the sense of virtuosity working in service of emotional effect.