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.
From Wikipedia, the free encyclopedia. Experimental music is a compositional practice defined broadly by exploratory sensibilites and movement radically opposed to and questioning of institutionalized musical compositional, performing, and aesthetic conventions (Sun 2013). The practice became prominent in the mid-20th century, particularly in North America.