The Four Freshmen's rendition of 'Time Was (Duerme)' exemplifies the group's mastery of vocal harmony and smooth jazz interpretation. As a quintet of African American singers active in the 1950s and 1960s, they were renowned for their intricate four-part harmonies and sophisticated arrangements that blended gospel sensibilities with jazz improvisation. This recording captures their signature style, characterized by lush, layered vocals and a polished production typical of their work during the mid-century era. The song reflects the group's ability to transform standard pop melodies into sophisticated musical statements, showcasing their influence on vocal jazz and their enduring legacy in American music history.