Dial Records catered to jazz musicians and record collectors. Charlie Parker was one of the major jazz artists to record with Dial. His Dial sessions occurred at the personal depths and artistic peaks of his career during which he introduced a number of jazz staples such as Ornithology and Scrapple from the Apple . His ten sessions associated with Dial are presented in detail and include the repertory, original issues and reissues, titles and notated transcriptions, and analyses of performances. Commentary explains many of the titles to Parker’s pieces and collates the various recordings in which he performed his Dial repertory outside the confines of the Dial studios; these celebrated performances helped to shape modern jazz.