Hi, I remember once this guy saying to me that he nomraly takes one song, song A, he then takes to songs three songs that mix in a good way with song A, one that is the one he plans to play and two backup songs, so he would mix from A to B, and then C and D is backup-tracks in case the mood hanges or the dancefloor changes in some other way then he imagined when preparing. then he takes a third track, and selects two backups that mix good with this third one. so he ends up with maybe 20 sets of 3 tracks… this way he has 60 tracks… and then he chooses 20 sets per hour he plays… althoug there are many other ways of doing it
