Extended Field unites Horse Lords and Arnold Dreyblatt for the eighteenth volume of FRKWYS, an intergenerational collaboration of adventurous musicians drawn to the sonically radiant world of just intonation—an ancient tuning system in which scale intervals are derived from whole-number ratios. Dreyblatt first immersed himself in this approach in New York during the 1970s, while Horse Lords began exploring and applying its possibilities nearly four decades later. Together, they create a vibrant harmonic environment, fueled by a shared devotion to rhythm, achieving a marriage of discreet but related aesthetics for the ages.