Alfred's Essentials of Music Theory-Ear-training is of equal importance as sight-reading and in order to learn music students must hear examples of the topics they are learning. Alfred s Essentials of Music Theory CDs 1 and 2 contain all the samples for the Ear Training exercises and studies in the Essentials Of Music Theory Textbooks. These CDs will enhance the learning process making it more practical more fun and more effective and students will be able to hear the unique differences whilst following on the page.