The only system I currently I am using is intended to solely review DJ mixes. It uses a 1 to 10 scale that judges the quality of the variety of the following parameters: MC, Originality, Mixing, Phrasing, Selection, and Vibe. Scores are recorded throughout the mix at an average of 5 minute intervals. The scores of each of those parameters are averaged at each interval, a Turntablism Bonus (if applicable) is added, and a number is produced for each interval. All of the numbers produced this way then are averaged and that produces a final score.