During his stint with Miles Davis, Mobley's four Blue Note sessions with bandmates Wynton Kelly and Paul Chambers are considered his finest and most lyrical work. Grant Green and Philly Joe Jones complete the group on this gem. "Workout is a Blue Note classic in every sense, from its recording by Rudy van Gelder to is cover photography by Francis Wolff. Label stalwarts Mobley and Grant Green, backed by an illustrious rhythm section, meld bebop and blues into pure hard bop, investing every note with soulful feeling." - Larry Birnbaum, Stereophile Magazine, February 2013, p. 62