This is a true classic. Flügelhornist Clark Terry, who long has had the happiest sound in jazz, performs ten enthusiastic and generally hard-swinging songs with the Oscar Peterson Trio (which at the time included bassist Ray Brown and drummer Ed Thigpen). Terry is quite exuberant on such pieces as "Brotherhood of Man" and "Mack the Knife," and even the ballads ("They Didn't Believe Me" and "I Want a Little Girl" among them) are full of excitement. This session, though, is best known for having introduced Terry's humorous "Mumbles" vocals, which can be heard on that piece and "Incoherent Blues." This delightful and essential release has fortunately been reissued on CD. — Scott Yanow