West Coast Swing can be danced to almost any music written in 4/4 time at speeds ranging from very slow to very fast, but the character of the dance changes over that range. At the slowest speeds the dance tends to exhibit a highly elastic connection with the possibility of very sexy, "slinky" walks for the lady, and a slight backward leaning poise at the full extent of the connection. At faster speeds the partners become more upright and the connection shortens with more of a "push and pull" feel and look.
Two styles of West Coast are "Classic W.C. Swing (pulsing down) and "Funky or Contemporary W.C. Swing" (pulsing up) with the basic steps being exactly the same. Dancing to different types of music gives a different feel and look.
For some examples of music that you can dance West Coast Swing to please visit the WCS MUSIC page and have listen.