There are several classifications of ballroom dance,
according to the speed of points: fast step dance (including fast three, fast four, rumba, cha-cha-cha, etc.), slow step dance (slow three, slow four, blues, foxtrot, etc.), flat step dance (in three, flat four, etc.).
Unified points: waltz (slow three, fast three), Latin dance (rumba, cha-cha, samba, jitterbug), tango and so on.