The fourth phase of Ken Vandermark's ambitious work-in-progress, which aims at bridging two aesthetics or sensibilities, is no disappointment and reinforces the notion that this might be his most accomplished project. Over the length of the six compositions that comprise this two-disc set, whether he seamlessly lets the instruments come in and out on the anthem-like "Killing Floor" or composes a deft collage on the kaleidoscopic "Reverse One," his arranging skills are advantageously displayed. "Franja" stands at the crossroad of hard swing and distortion, and stresses Vandermark's ability to incorporate tradition in a modern setting. The majestic "Local Works" and its compelling swirls follow a path that reaches various peaks of intensity. Vandermark openly acknowledges new music references in "Vertical 8" and makes effective use of repetitive patterns. For this epic endeavor, the leader benefits from a sympathetic and familiar crew. Electrifying cellist Fred Lonberg-Holm, versatile pianist Jim Baker, and electronics wizard Lasse Marhaug are the defining voices, and their sounds give the proceedings a characteristic halo, the latter two being in total communion on "Reverse Two." Company Switch also succeeds as an emotionally charged diptych with Vandermark delving into personal experiences to create music that alternately exudes beauty and suffering. Highly recommended.