The format featured both well-established and up-and-coming rock artists. While the station would play popular rock acts, the announcers often focused on their deeper album cuts. Additionally, the music flow was diverse enough that one could hear a searing Led Zeppelin track and a folksy Joni Mitchell song in the same set, yet the music would flow naturally. The air talent programmed much of the music without the use of a set playlist. While a listener could hear an occasional country record by Jerry Jeff Walker or a reggae tune by Peter Tosh, they knew it would be followed by a rock record along with song information from the knowledgeable air talent. KSFM's format was dayparted: listeners would be treated to a softer rock sound in the daytime and hard rock at night. With Earth Radio 102's limited song repetition, listeners were often surprised by what would play next.