# Doctor of Music [[4.2.0 What are Progression Maps?|Progression Map]] ### Doctoral (MUSA 764S) - An exceptional sense of tone quality and the ability to both scrutinize and nurture that quality among others - A expert-level understanding of *multiple* technical approaches to numerous instruments and their resulting sonic and physiological properties - An expert-level understanding of *at least one* area of harmony, form, or rhythmic theory applicable to percussion - A truly individual sense of musical expression built upon study and awareness of a vast exposure musical and performance philosophies