The Theory Time Medallion Series Diamond workbook covers the College Prep levels of music theory. By working through the Diamond workbook, a student will cover the concepts taught in Grades Eleven & Twelve in the original workbook series. This workbook is appropriate for students who have a solid understanding of the Theory Fundamental through Advanced levels (Primer through Grade Ten in the original Workbook Series.) The Diamond workbook will prepare a student for an AP theory course and freshman college theory. Upon completion, a student will be ready to set the musical world on fire!