Heavy music's evolution has always been a murky swamp of sub-genres. So, combining Thin Lizzy's glistening twin guitar harmonies with Melvins-grade sludge and a hearty dose of proto-metal psych probably shouldn't sound so revolutionary as it does in the hands of L.A. quartet Deathchant. But theirs is a special, transcendent sound. 'Waste', the band's sophomore album and first for RidingEasy Records, is anything but. The 33-minute, 7-song blast flows seamlessly from song to song, aided by droning segues, while simultaneously slithering between genres and moods. Rumbling noise, chiming guitar melodies, bluesy boogie, NWOBHM thrash, COC grunge and punk fury all rear their head at times, sometimes all at once. Though you wouldn't be able to tell by the concise structures and well- crafted songs, a lot of Deathchant's music is improvised, both in the studio and live. That's not to suggest their songs are jammy - they're very tightly organized compositions. But the four musicians have that special musical telepathy that allows them to keep the song structures open-ended.