Now that these popular lessons are on CD, it's easier than ever to join in and make beautiful vocal music. Find the song or part you are learning with the simple push of a button, and start harmonizing! If you're a complete beginner you'll learn the theory behind harmony singing and get the ear training you'll need to develop your style. If you already have some knowledge, these four wonderful singers will help you hone your skills, increase your repertoire and gain new techniques and insights into singing with others. The vocal parts, for duet, trio and quartet singing, are recorded on separate channels to allow you to try out your harmonies with Cathy, Marcy, Robin and Linda.