Riffs (check).Tone (check). At least two song titles with the word 'Hell' (check). These high priests of heavy lay down an epic, hardened syllabus of unholy ass shake that's hands down the best record of the year. Comprised of veterans of the infamous early-90s Stoner Rock scene, Teacher's first lesson oscillates between heavy grooves with intricate melodies and punishing riffs that will leave you gasping for air. 10/10