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. music intended to convey an impression of a definite series of images, scenes, or events. Compare absolute music. Some critics go so far as to deny the right of existence to all program music. Few pieces of program music are so closely associated with the subject as this tone picture of the Devil's Round.