Breadcrumb Home Music MUS 217 MUS 217: MUSIC THEORY IV Download as PDF Program Music Credits 3 Division UG School Division School of the Arts A continuation of MUS 214, this course introduces non-dominant altered chords, chords of the ninth, eleventh and thirteenth, Impressionism, and 20th century music. The class will meet three times a week. Prerequisite: MUS 216 Prerequisites MUS 216