You Must Believe In Spring is the title track of the album by Bill Evans.

With his longtime bassist Eddie Gomez and his drummer of the period, Eliot Zigmund, Evans explores such songs as “We Will Meet Again,” Jimmy Rowles’s classic “The Peacocks” and the “Theme from M*A*S*H.” It’s a solid example of the great pianist’s artistry. [source]

Bill Evans – piano / Eddie Gomez – bass / Eliot Zigmund – drums