His piano playing incorporated the boogie styles of Pete Johnson, Meade Lux Lewis, and Albert Ammons; the jazz style of Jelly Roll Morton; and the pianoplaying of Fats Domino. Allmusic journalist Steve Huey also noted "At the peak of his game, Smith epitomized New Orleans R&B at its most infectious and rollicking, as showcased on his classic signature tune, 'Don't You Just Know It.'"
Both "Summertime" and its b-side, "Searching for You", are often described as doo-wop, because of their time period and their a cappella harmonies. However, both songs may also be described as pop versions of Sacred Harp styles, as the group started as church singers.
Several singles (many written or co-written by members Jameson and Feller) followed "Summertime, Summertime", none of them hits.