Grand Forks Master Chorale presents concert The Grand Forks Master Chorale will celebrate the end of its 25th season Sunday, May 18, at 7:30 p.m. in Calvary Lutheran Church, Grand Forks. The concert is free and open to the public. Under the director of Joshua Bronfman, Master Chorale artistic director and director of choirs at UND, the Master Chorale will perform Frank Martin's Messe for Double Choir and Robert Ray's Gospel Mass. According to Bronfman, the Frank Martin's Messe is one of the great a cappella choral works of all time. It has been recorded by many great choirs, such as the Swedish Radio Choir, the Robert Shaw Chorale, the Dale Warland Singers. Martin originally composed this difficult Mass as a personal expression of his faith; he never intended for it to be publicly performed. The piece was premiered more than 40 years after it was originally composed. Though a very modern setting of the mass text, there are very distinct aural references to the medieval and baroque eras. Often described as 'austere,' the Messe is filled with robust and complex writing, while managing to maintain a beauty that evokes a strongly ground the work as an expression of faith and the divine. Robert Ray's Gospel Mass is a joyous, exciting and energizing setting of the traditional Catholic mass. Scored for percussion, bass and piano, the work proclaims to glory of the Lord using the best techniques of the Gospel tradition. It promises to lift you out of your seat and have you dancing in the aisles. Sara Bloom accompanies the 30-plus member Grand Forks Master Chorale. Peter Johnson serves as executive director, a position which will be assumed by Juan Pedraza this summer.