“Essential Musicianship, Book 3,” recommended for Grades 10-12 or other advanced singers, is a sequential choral method that helps the returning high school singer develop intermediate to advanced skills. Concepts presented include major/minor scales, diatonic chords, intervals, chromaticism, categories of harmony, modes, simple, asymmetric and changing meters. The Student 10-Pak provides over a 10% savings if multiple copies are needed.