My early observation of mixing is that when using the sync button on traktor going from 1 song to the next the via a smooth transition requires the 2 songs to be within 3 bpm of each other. I find any more than this and the song that is being mixed into sound too disimilar from its original sound and unpleasant although I'm sure this is not a universal rule. My question is that if you are mixing from one song to the next and want it synced together how do you effectively go to a higher or lower bpm from song to song?
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