WILLIAMSTOWN -- The last dance of the 2012-13 season is Friday, May 17, from 7:30 to 10:30 p.m. at the First Congregational Church, 906 Main St. Live calling and teaching of every dance is by Michael Kernan. The live music is lead by Eric Buddington on Fiddle, Ronadh Cox on bodhran and others. No partner is necessary and all experience levels are welcome. Please bring clean soft soled shoes, potluck cookies for the dance break and a water bottle. Admission is $10. There is a potluck before the dance that begins at 6:30 p.m. and new dancers can have a beginner’s warm up at 7:15 p.m.