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Some were seasoned professionals; others were dipping a toe into Irish social dancing for the first time.

The social dancing that accompanies some songs is often just as exciting.

But Threadgill, 79, has done plenty of soaring, on stages, over the years: composing music intended for social dancing, and pieces for orchestra and string quartet in which players are encouraged to improvise.

This year, the social dancing was under the umbrella of Lincoln Center’s Summer for the City festival, which also encompassed workshops for children, orchestra concerts and poetry readings.

Bachata class is at 5 p.m. and social dancing will be from 6 to 9 p.m.