The basic point of DJing is to play music. You spend the whole time going from one deck to the next deck, playing a different tune on each deck as the night progresses, but sometimes, when the big tunes are out, you'll hear them played several times throughout the night.

The point of Djing in the dance side of life is to mix these tunes together in a way that keeps people dancing, and in a lot of cases, don't even notice that the tune has changed to another one (also know as known as seamless mixing). There's many ways to make the transitions from tune to tune seamless , the most simple part of this is to make sure that the bass drum beats occur at the same time.

So, the important thing is to keep the bass beats flowing through the sets, not that that means there's always bass drums banging away (there is parts of a tune called 'Breakdowns' or 'drops' without beats, which are just as important as the parts that has beats). It's just important that the beat is constant between tunes, so the people on the floor don't have to do a quick 2 step shuffle to get back in time with the beats.

The point of it all is aimed towards playing music live. The big basis behind the house/trance genre is the rhythmic booming bass which makes the people on the dance floor want to dance. A huge part of the Trance scene, the constant bass beats leading to a kind of trance like state - or something like that.

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