Incongruous [in·con·gru·ous] adj.
1. Lacking in harmony; incompatible. 2. Not in agreement, as with principles; inconsistent: a plan incongruous with reason. 3. Not in keeping with what is correct, proper, or logical; inappropriate: incongruous behavior.
Music creates order out of chaos: for rhythm imposes unanimity upon the divergent, melody imposes continuity upon the disjointed, and harmony imposes compatibility upon the incongruous. ~ Yehudi Menuhin