Track a DJ may have played that hasn't been released and therefore hasn't been ID'd.

New track a producer/DJ plays that nobody knows the name of yet.

1) In Freudian theory, the division of the psyche that is totally unconscious and serves as the source of instinctual impulses and demands for immediate satisfaction of primitive needs.
2) Short for identification
3) The creators of Doom

ID is an abbreviation for In Development. Music Producers would usually name a song preview ID because it is a song being worked on.

along with the ego and the super-ego one of the three components of the pyche... apparently

worth 4 points in scrabble!

1. an identity card

2. any means of identification

Contraction for "I would", "I had", or "I should."

1. According to Freud, the part of the mind which embodies the instinctive subconcious - the hidden part of the iceberg, if you will. Freud was also the author of the theory that all men want to sleep with their mother, in case you wondered.

2. An internet name, commonly used by bored teenagers on electronic-gaming-oriented forums.