A complete list of all steps currently defined by ROUNDALAB along with their timing and phase can be found here
The following description of the rhythm is from the Harold and Meredith Sears website http://haroldsears.com/dance/figures/slowts.html
Slow Two Step
4 or 6b/m; 16-32m/m
The nightclub or California two step was originated by Buddy Schwimmer, Lee & Linda Wakefield, & Ron Montez during the 1970s in crowded dance clubs on the west coast as a rhythm one could use to the slow love ballads that are otherwise hard to know what to do with other than clutch and sway. But the nightclub two step encourages you to draw out a side step and use up some of the “extra” time that way. In round dancing, the tempo is faster. Rachel’s Song is about 26 measures/minute, and now most dances are in the range of 29, 30, and even 31 m/m.
Schwimmer taught the dance as a quick rock, recover, and then side, or a cross behind, recover, side. Slow Two Step was introduced to round dancing in the early ’90s by Bill and Carol Goss, but they presented it as a “slow, quick, quick” rhythm, with the side step done first and the rock/recover second. In 1991, they published a cue sheet for Kiehm’s Evergreen, then Are You Still Mine in 1992, and they wrote their own, Even Now. The Stairwalts wrote Rachel’s Song in ‘92, and Jim & Bonnie Bahr released What Am I Living For in ‘93.
Most choreography is written as though the timing of the figures is “slow, -, quick, quick;” and if the music is 4/4, that is a good description, but if you have 6/8 music, it would be better to think of the timing as slow, -, slow, -/&;” but even this representation is approximate. Out of the six beats of music, the first step uses three, the second uses two, and the last is a quick of just one beat - sloow slow quick.
On the surface, Slow Two Step is similar to Bolero (that initial slow side step). But Bolero is usually slower, smoother, a bit sensual. Bolero has conspicuous rise and fall. Slow Two Step is faster, sharper, peppier, more sophisticated. There is an elastic, push-pull connection between partners. It is up and flat - no rise and fall. And each rhythm has its own characteristic figures. The Half Moon is Bolero, and the Triple Traveler is Slow two Step. However, the dancer does need to remember that round dance choreographers are not the least bit shy about borrowing figures from other rhythms. In a Slow Two Step, you could easily find a New Yorker or Fence Line (maybe even a Half Moon) from Bolero, or a Vine or Wheel from Two Step or even a Bota Fogo from Samba. (I’m looking at the Shibatas’ What A Wonderful World, right now.) So, if you don’t find one of your Slow Two Step figures in this list, do a site search or check the master index. It might come from another rhythm.