Track Preparation

Cue Point	Function	Aligns with
Memory Cue 1	Track should mix in	Memory Cue 3
Memory Cue 2	Other track should be mixed out	Memory Cue 4
Memory Cue 3	Other track should mix in	Memory Cue 1
Memory Cue 4	Track should be mixed out	Memory Cue 2
Memory Cue 5	Place to skip to Hot Cue C
Hot Cue C	Skip part between Memory Cue 5 and Hot Cue C
Hot Cue A	Bass of track should be on	Hot Cue B
Hot Cue B	Bass of track should be off	Hot Cue A

Memory Cues are chosen because older DJ equipment only has three Hot Cue buttons, and with this convention Hot Cue A and B can be used for creative purposes, and Hot Cue C can be used to skip a part of the track.

With this convention a track transition looks like this:

Track 1: <---M5-------C---M3---B---M4--------
Track 2:          --------M1---A---M2---M5-------C---M3---B---M4---
Track 3:                                         ----M1---A---M2------->

The new track is audible at point M1-M3.
The bass-swap is done at point AB.
The old track is mixed out at point M2-M4.
When the track reaches point M5, Hot Cue C can be pressed to skip part M5<-->C.

It is possible that two Hot Cues are at the exact same place. In this scenario it is sufficient to leave the least important one out (Hot Cue A, B and C have priority over the other Hot Cues).

Skip part of the track

Memory Cue 5 are actually two Memory Cues (5A and 5B) right after each other. In the example below is visible that two Memory Cues (V) are on bar 1.3 and 1.4. Between beat 3 and 4 of the first bar Hot Cue C can be pressed to skip to Hot Cue C:

            V   V               C 
[...|...|...|...|...|...|...|...|...|...|...|...]