Complicated editorial calculations must be made when artists associated with jazz create entirely different forms of music. Herbie Hancock and Pat Metheny are among jazz giants who repeatedly veer from the form. The peripatetic Kansas City musician Robert Castillo follows in their footsteps. Among Friends, the nearly two-hour epic Castillo’s band The Sextet released in 2019, was Plastic Sax’s favorite Kansas City jazz album of that year. I feel obliged to expound on Castillo’s new EP La Tierra Se Está Doblando even though it bears only a tangential relationship to jazz. Castillo describes the 22-minute EP he released under the banner of Blob Castle as electronic music. Still, there’s plenty of interest to fans of improvised grooves. The non-jazz tracks are buoyant ear-ticklers. “Inhale the Dust” is compelling nu-jazz in the vein of Nils Petter Molvær. And Castillo’s bass feature “2020” sounds as if the fusion standout Stanley Clarke joined the prog-metal band Tool. Purists of every stripe should avoid it at all costs, but La Tierra Se Está Doblando is the rewarding work of one of Kansas City’s most liberated musical minds.