In techno, house or tech house DJ'ing, when you have mastered the art of beat matching and can mix two records very well, what is the next step in DJ'ing?
How fast can a top DJ beat match two records that are matchable but he hasn't played before just by ear? For example, he plays record 1 and it's 135 bpm so how long would it take to get record 2 to 135 bpm using only the pitch control and your ears so you can mix them?