 Early jazz announcers on WCHD included Ken Bradley, Jo Ray, and Ed Love (who continues to host a weekend jazz program on public radio station WDET).On March 18, 1974, WCHD changed its call letters to WJZZ to emphasize its musical format.The station played a mix of traditional and contemporary jazz along with some soft R&B artists such as Sade and Anita Baker, becoming a precursor of the format later known as smooth jazz.