The Clark Sisters Swing Again finds the quartet interpreting a dozen big-band swing classics from the '40s in its own style, much more pop- than jazz-oriented, with a great deal of wordless vocalizing of the sort that
Ray Conniff later popularized. That technique is most pronounced on "In the Mood," where the sisters' voices take the place of the horns on the famous instrumental riff. An obvious reference point is
the Andrews Sisters, but
the Clark Sisters achieve a fuller choral effect that is exaggerated by the use of echo (and probably overdubbing). The mellow vibes on "I Can't Get Started" and crisp bass on "The Mole" foreshadow the easy listening sound of the '60s, and the results weren't very different when
Conniff and
101 Strings covered similar material years later. "Sugar Blues" has a playful vocal arrangement that reveals a sense of humor, and while the group has a very slick sound for its era, the arrangements throughout are elaborate and inventive.