Along with many group projects and collaborations, bassist Barre Phillips established the art of the unaccompanied bass album with his 1968 landmark Journal Violone. The elusive Californian expat, based in southern France since 1972, made the solo bass idiom a steady pursuit over the decades. But with End to End, an 83-year-old Phillips offers what he proclaims to be his final solo statement: Divided into three multi-movement suites, the music flows from his fingers, through either deep-toned pizzicato or sonically adventurous bowing to produce ghostly overtones, repeating rhythms, and spacious melodic arcs. Reflective of the classical training he received before delving into New York’s progressive jazz scene in the early ’60s, he produces a bass sound that is uniquely big and broad, with unerring intonation. The result is music that’s eerily solitary and teeming with ideas.