Unchanged, changing or changed male singers in middle school and high school may need a little extra help in "finding" their singing voices. Roger Emerson has developed a series of warm-ups that uses excerpts from classic rock and roll tunes that will provide the motivation and repetition they need to do just that. Each song features limited ranges starting moderately and gradually ascending into the tenor range and descending through the bass range as needed. The professionally-produced CD recording presents each exercise with vocals so your guys have a model to emulate.