Friday, Aug. 9, in Callahan Hall at the Lewiston Public Library (200 Lisbon Street, Lewiston); 6:30-7:45 p.m.: a fun-&-easy French-Canadian-style barn dance with live music by local fiddlers and friends; admission: $2 adults, $1 for youth (up to age 22).; 8 to 11 p.m.: traditional New England contra dancing to the band Tidal Wave (Raz de Marée) from Quebec. Admission: $8, $5 for students (up to age 22). All dances taught; no experience necessary. Come with or without a partner. Note: Callahan Hall is air-conditioned! For more information call: 782-0386.