San Francisco brutalizers Ettrick finally deliver the full-length destruction they’ve been threatening. Feeders Of Ravens is a potent collection of harsh jazz violence, showcasing all their classic moves: slaughtering saxophone dialogues, manic percussive fits, raging horn/drum annihilation, etc. What elevates their improv attacks above blind frenzy is the telepathy of Jacob Heule and Jay Korber, intuiting one another’s upswings and downturns.

Nowhere is their psychic connection more apparent (and demonic) than on “Raven Harvest,” the LP’s closing track. Searing sax blasts give way to splatterpaint percussion and scraping metal, which then steadily coagulates into an aggressive avalanche of pummeling, white-hot drum rapture. From life into death into life. Black LPs in pro-printed jackets.