AlfredÂ's Essentials of Music Theory is designed for students of any age, whether listeners or performers, who want to have a better understanding of the language of music. In this all-in-one theory course, you will learn the essentials of music through concise lessons, practice your music reading and writing skills in the exercises, improve your listening skills with the available ear-training CDs (sold separately), and test your knowledge with a review that completes each unit.The Double Bingo games feature two games per side of each player card - one in orange and the other in purple. Play the orange game, play the purple game then play the two games together. Flip it over and do the sameÂ--that gives you 6 games altogether per set! Each set includes 35 player cards and 4 caller cards.The complete line of AlfredÂ's Essentials of Music Theory includes Student Books, a TeacherÂ's Answer Key, Ear-Training CDs, Double Bingo games, Flash Cards, Reproducible TeacherÂ's Activity Kits, and interactive software for students and teachers in private study, studio and network environments.