To enter, you must submit an mp3 audio file of your original composition. Include any pertinent information about the music, as well as your contact information. You must own all rights to any music you submit, and sign a legal form to that effect. High energy tracks are always good for short videos, but your tracks can also be serious, funny, in any music style or arrangement, or anything else you think fits well with a Tribes highlight reel. 30-45 seconds is the optimal length however longer tracks will not be judged unfairly. If you don't already have a music creation tool, check out Sonic Foundry's free version of Acid, Acid Xpress.

Winners will be selected from all elegible entries by July 18th, so hurry! Tribal tune-makers will be credited in the videos themselves, and mentioned in the game manual.