When giants of Jazz join together in conjugal jamming the resultant jousting can be less than jubilant. That was often the case in the era when promoters and record producers thought it a bright idea to create battle conditions at concerts and on albums. Undercurrent features the protagonists unsupported by a rhythm section, and relies on their intuition and telepathic understanding to create the interplay revealed in this album. Much admired as an influence on other Pianists, Bill Evans won seven Grammy Awards and a led a Trio that released many acclaimed albums. While Jim Hall continued playing, composing and arranging touring the world, receiving myriad awards in recognition of his achievements.