Beatmatching

I guess you can use a software (traktor/serato/virtual dj). If you don’t look at the BPM and beat grid and don’t use the sync button, then it could work, I think. Download a demo version.

Here’s what I suggest if you’re only using a computer. I’m assuming you want to do manual beatmatching and not sync:

1. Open the software you have.
2. Load two tracks.
3. Pick one that will play first.
4. Move the pitch on the second one until you see the BPM readouts match.
5. Play the second one on the first one when you feel it’s the right time.
6. Use the + and – buttons near the pitch slider of the new track to adjust the tune to fit.

This is the bare basics. I would tell you to learn adjustment like this. When you get it perfect and can hold blends for 1-2 minutes, then also explore how to determine the second pitch without the BPM meters. Just by ear. You’ll also learn how to use the fader and EQ better to make your blends tight.
More important though…and longer term…is learning that “WHEN” in playing the second tune. When to press play so you’re not having vocals on top of vocals, and what tunes to play next that will keep things smooth as opposed to abruptly changing.
You should also check out our online video course: http://www.digitaldjtips.com/how-to-digital-dj-fast-2013/