yes, they are used for dancing in sets.
not to be confused with solo dancing.
        This set from County Cork, Ireland is also known as the DUNMANWAY POLKA SET.
            Take waltz hold for swings, quarterhouses, houses and when dancing slide in/outs.
            Chain: Low follow -- With a waist-height hold for all contacts, ladies grasp right
                      hands in the center and dance to the opposite gent (who has danced to his partner's
                      position); couples grasp left hands and dance around one another anticlockwise
                      (no arch); ladies chain with the right hands on the way home also.
            Slide in and out: Gents dance toward the center LEFT, RIGHT, LEFT, RIGHT then toward home
                     RIGHT, LEFT, RIGHT, LEFT, RIGHT.   Ladies dance toward the center RIGHT, LEFT, RIGHT,
                     LEFT then toward home LEFT, RIGHT, LEFT, RIGHT, LEFT.
            Gents dance forward on the left foot and ladies begin forward on the right foot.
            Bar counts (quantities of measures) for patterns are shown in bold.
            The total bar count for each Figure includes an eight-bar introduction of music.
            First side couple is on the right of the first top couple.
            Documentation is based upon the DUNMANWAY SET having been danced fall
                      2000 at North Olmsted, Ohio USA.
             Edition of October 4, 2006 -- Contact larryetaylor@hotmail.com
            
SET FORMATION   FIGURE 1 -- POLKAS (104 BARS)
All couples:         REPEAT "MARKER" quarterhouse (body, polka body, in-out-and-around)16;
Top couples:         house each other8;
        ladies chain8;
        swing8;
Side couples:         repeat from REPEAT "MARKER" 40.
All couples:         quarterhouse16.
SET FORMATION   FIGURE 2 -- SLIDES (152 BARS)
All couples:         REPEAT "MARKER" slide and change:   slide in/out 4; house half-way around4;
                                            slide in/out4; house half-way around4.
Top couples:         first top couple : house inside8;
        slide in/out4;
        dance at home (one revolution)4.
All couples:         repeat from REPEAT "MARKER" with first side, second top then second side couples leading96;
        slide and change as above16.
SET FORMATION   FIGURE 3 -- POLKAS (296 BARS)
All couples:         quarterhouse16.
Top couples:         REPEAT "MARKER" house each other8;
        ladies chain8;
        swing8;
        in waltz hold, dance in-place (no turns)4;
        dance at home, still in waltz hold (one revolution)4;
        cross, steal a lady then form a center-circle :
                  first top couple cross the set right-hand-in-right where second top
                           couple stand right-hand-in-right2;
                  second top gent takes the crossing lady's left hand and pulls both ladies
                           under his arms, keeping hands at the shoulders2;
                  first top gent takes ladies' inside hands and all dance to the center, pull
                           hands up to form a circle and all bow4.
        little Christmas6; reverse to home2;
        ladies chain8;
        swing8.
All couples:         repeat from REPEAT "MARKER" with first side, second top then second side couples leading192.
        quarterhouse16.
SET FORMATION   FIGURE 4 -- SLIDES (152 BARS)   
All couples:         REPEAT "MARKER" slide and change as in Figure Two16.
All ladies:         pinwheel clockwise with the right hand, making one and one-half turns,
                  ending with the opposite gent8;
        swing new partner8;
        slide and change as in Figure Two16;
All gents:         pinwheel anticlockwise with the left hand, making one and one-half turns, ending
                  with original partner (at opposite)8;
        swing original partner8;
All couples:         repeat from REPEAT "MARKER" to re-establish original home positions64.
        slide and change as in Figure Two16.
SET FORMATION   FIGURE 5 -- POLKAS (216 BARS)   
All couples:         lead around anticlockwise in open waltz hold, dancing two bars on-the-spot
                  at each position16.
        REPEAT "MARKER" quarterhouse16.
All ladies:         pinwheel clockwise with the right hand3; drop hands and reverse direction1;
                  pinwheel anticlockwise with the left hand, ending one position to the right
                  of their starting position4;
All gents:         pinwheel with the right hand3; drop hands and reverse direction1, pinwheel
                  with the left hand, ending at the gents' home position4;
New couples:         swing8;
        repeat from REPEAT "MARKER" to re-establish original partners120.
All couples:         quarterhouse16;
        lead around anticlockwise in open waltz hold, dancing two bars on-the-spot
                  at each position16.

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