After working on the soundtrack for the "Peanuts" feature film "", Guaraldi ceased releasing any new material. In his review of "The Complete Warner Bros.–Seven Arts Recordings", "The Recoup" critic Joseph Kyle lamented, "frustrated and unable to secure a record deal, he spent the remainder of his life as a live performer, recording more soundtrack material, and banking on the goodwill his "Peanuts" compositions earned him." Guaraldi's sound also evolved into a more fusion jazz/rock sound, as he largely traded the piano for Hammond B-3 and Fender Rhodes electric keyboards. His live performances included musicians who specialized in funk and soul as well as traditional jazz. Posthumous releases "Oaxaca" (recorded 1970–71), "Live on the Air" (recorded February 1974) and "North Beach" feature both studio and live performances recorded during this period of transition.