Developmental music

Baroque music is pre-developmental in the sense of what development came to mean post-Mozart. The music of DJ culture is post-developmental, as was minimalism proper in Western classical music. The traditional popular song is simply non-developmental. Developmental music unfolds in a dialectical relationship to its form, where in general pre and post developmental musics are fixed in length by something external to them, like a pre-existing fixed form, or the capacity of a 45 single, and have the capacity to otherwise go on forever. This is cyclic, mythic time.