Double-time is playing that makes the rhythm feel twice as busy without changing the tempo.
How to use it
Play the hi-hat or the snare in finer subdivisions; it works as a way to raise anticipation in a build-up.
How it differs from related terms
It is a change in feel created by note subdivision, not a change of tempo.
Do not subdivide all the way down into the low end; limit which parts create the faster feel.
