The sextet featured on the title track, as well as “Blue ‘n’ Boogie,” adds the talents of J.J. Johnson (trombone) and Lucky Thompson (tenor sax). Davis’ quintet includes the primary trio and Dave Schildkraut (alto sax). Perhaps not an instantly recognizable name, Schildkraut nonetheless made some notable contributions to Stan Kenton’s Kenton Showcase EPs, concurrent with his work with Miles. Walkin’ commences with the extended title track, which follows a standard 12-bar blues theme. While the solos from Johnson and Thomson are unique, Miles retains a palpable sense of extrication from the music — as if the song was an extension of his solo instead of the other way around. The lethargic rhythms reiterate the subtle adornments of the horn section to the basic trio. In direct contrast to “Walkin'” is a full-tilt jumper, “Blue ‘n’ Boogie.” The improvisation yields some truly memorable solos and exchanges between Davis and Johnson — who can be heard clearly quoting from Thelonious Monk’s “Rhythm-A-Ning.” “Solar” maintains a healthy tempo while drawing the listener in to the delicate interplay where the solos often dictate the melody. Horace Silver’s piano solo is Ellington-esque in it’s subdued elegance. The final track, “Love Me or Leave Me,” gives the most solid indication of the direction Miles’ impending breakthrough would take. So swift and certain is each note of his solo, it reflects the accuracy of someone thinking several notes ahead of what he is playing. Walking is a thoroughly solid effort.