原文: Hal Leonard Perfect Pitch Method. Voice sheet music. Hal Leonard Perfect Pitch Method. 3-CD Pack with Online Audio. Instructional.
译文: 哈尔·伦纳德绝对音感的方法. 声音的乐谱. 哈尔·伦纳德绝对音感的方法. A Musician's Guide to Recognizing Pitches by Ear Book. For Vocal, All Instruments. 教学. 简装与CD。 88页.