A smooth dance with a nice progression, plus a partner swing sandwiched by half heys.

The A2 "slice left" is a left-diagonal "long lines forward and back"—dancers join hands in long lines, walk forward on the left diagonal to meet the next couple, and retire straight back.

After the B2 gypsy, ladies in the center can connect everything by placing left hand in the gent's right as the lark leads into the shift left.

Ever notice how all in-flight annoucements seem to come from some overly-formal script written decades ago? Southwest Airlines is the exception, as I learned one landing when our flight attendant announced "Be careful when removing things from the overhead bins, because ... shift happens!"