One of two classic records (the other being Waltz for Debby) culled from perfectionist pianist Bill Evans' stand at the Village Vanguard in 1961. The album cover features the by-line "featuring Scott LaFaro", the bass player whose accidental death soon after highlighted his immense contributions to jazz. Absolutely timeless.

Duet albums were rare in 1962 and encounters of this quality are still rare. Bill Evans and Jim Hall, two modern jazz giants, were in peak creative form at the time, Evans leading his own trio and Hall working with Sonny Rollins's quartet at the time. These two masters challenge and complement each other brilliantly on a series of standards and jazz originals. Newly remixed and remastered in 24 bit, this new edition of Undercurrent, which contains two more tunes (tracks 7 & 8) and two alternate takes (tracks 9 & 10) added to the original United Artists album, sound exceptional.

William John Evans was an American jazz pianist and composer who mostly played in trios. His use of impressionist harmony, inventive interpretation of traditional jazz repertoire, block chords, and trademark rhythmically independent, "singing" melodic lines continues to influence jazz pianists today.