Canadian folk trio the Wailin' Jennys began as a one-off grouping of three singer/songwriters, but musical chemistry and audience response turned them into an ongoing band. Alto Cara Luft, the daughter of professional folksingers, had played with the Lilith Fair tour in Calgary and released her own album; mezzo-soprano Nicky Mehta also had her own disc, Weather Vane; and soprano Ruth Moody, lead singer for the roots band Scruj MacDuhk, had issued Blue Muse. But when they played together at a guitar shop in Winnipeg in January 2002, the results led to more bookings. Later that ...