In Toronto, Ontario, CA, sessions of traditional music occur at the Dora Keogh pub (141 Danforth Avenue, 416-778-1804)on Thursdays, 9-12 p.m., and Sundays, 5-9 p.m. Heavy on the tunes, at a challenging pace. Song occasionally, treated with respect. Dancing by chance and as space allows. For example: yesterday, among the usual assortment of flutes, fiddles and whistles we had five pipers. At different times during the session three complete sets were danced. Drop by if you're in town.