This collection of voice lessons is an absolute must for singers, church choirs, barbershop quartets, school chorus, and back-up vocals. Harmony is made easy with step-by-step instructions. The book covers learning to read music, sight-singing made easy, improving your pitch, singing in tune, improving your rhythm, male and female demos, and harmonizing with other singers. The four CDs cover scales, intervals, chords, and rhythm. Makes a great companion to SING! Or any vocal method.