The Flathead Valleyaires Chorus is in rehearsals for their spring concert program.   The main show will be on April 17th at 7:34 at Glacier High School Auditorium.   Guest performers include Judy Lawrence and Fast Track.   Fast Track is a first place winner of the Barbershop Harmony Society's Evergreen District quartet contest in 2009.   They bring a high energy performance that you don't want to miss.