Tempo and step structure make the difference
Quickstep is one of the standard dances and is danced in 4/4 time. In competitive dance, around 50 bars per minute is a common reference point. This is not a measured value for every Let's Dance performance: show music, introductions and musical transitions can differ. Still, the fast basic tempo explains why the feet move quickly while the upper body appears comparatively calm.
A Slow lasts two musical beats, a Quick one. A typical sequence is Slow-Quick-Quick-Slow, but not every Quickstep figure uses exactly this pattern. So look for a recurring change in step duration, not a rigid formula for the entire choreography. This is a way to observe, not rhythm training.
Moving around the floor and a closed hold alone are not enough. The Slow Waltz also has both, as well as Chassés, but its basic structure is in 3/4 time. In Quickstep, the fast four-beat meter combines with compact closing or crossing actions along continuous paths. A Chassé means step, close, step; in a Lockstep, one foot crosses closely in front of or behind the other.
If you then want to learn the figures you can see, the Quickstep figures for beginners are a good next step. The quarter turn to the right shows a concrete application of the slow and quick steps.


