In the military, a CDC is a Career Development Course. It's like a series of home study books to help you in your career specialty, and advance in rank. gromit801 Â· 1 decade ago
Aleatoric music, also known as aleatory music, is music with a random element. Chance elements within a piece can be used for composition, as well as for live performance. When a piece is being composed, random elements can be used to influence the outcome of a final musical piece.
program music. 1. A type of music, usually instrumental in form, that is intended to evoke a scene, communicate an idea, or tell a story. Typical subjects for program music are poems, extracts from plays, well-known paintings, or particular sections of landscape. 2. A piece depicting elements of a story, scene, or philosophical ideas.