Natural spin turn

The natural spin turn is a ballroom dance step used in the waltz. It is typically used to advance a couple $5/4$ of a turn down line of dance, although an underturned spin turn is also very useful for turning a corner. The natural spin turn is also considered an intermediary step toward learning pivots.

Technique
The natural spin turn consists of the first half of a natural turn followed by an under-turned pivot.


 * Leader (man)


 * Follower (lady)

Underturned spin
The underturned spin is a useful variation on the natural spin turn that allows a leader to navigate a corner. The step is identical to the natural spin turn but only rotates $1/4$ of a turn on the pivot (beat 4) instead of $1/8$, and $1/2$ of a turn on 4 to 6 instead of $3/8$. This reduces the total amount of rotation by $3/8$ of a turn.