Square dance square dance, very rarely are two modern Western dances ever alike. Like traditional square dancing, recovering from occasional mistakes is often part of the fun. Dancers are encouraged to dance only those programs at which they are reasonably proficient, the default level of achievement being the Mainstream program. All programs are set by Callerlab, the callers' international association, which also governs the training of callers. Irish and Scottish dances are normally done to traditional tunes. English dances may be done to traditional tunes, though, especially at ceilidhs, there is experimentation with many different musical styles. The two types of American
Chatham Square (IRT Third Avenue Line) Chatham Square (IRT Third Avenue Line) Chatham Square was an express station on the demolished IRT Third Avenue Line. It had two levels. The lower level had two tracks and one island platform that served trains of both the IRT Second Avenue Line and IRT Third Avenue Line. The upper level had three tracks and two island platforms that served trains of both lines going to and from City Hall. Second Avenue trains served the station until June 13, 1942, and City Hall Spur trains served the station until December 31, 1953. This station closed entirely on May 12, 1955,