Prior to his 7pm Great Music in a Great Space concert, Associate Director of Music at the Cathedral Raymond Nagem will host a free pre-concert lecture to discus the works he will be performing. The program includes two works by organist, pianist, composer, and visionary Olivier Messiaen: Apparition de l’Église éternelle and La Nativité du Seigneur. The lecture will be streamed live, for free, on the GMGS Facebook page at 6pm.