Festive Seasonal favourites: Morten Lauridsen – O magnum mysterium by 5:4 December 24, 2011 • 12:16 written by 5:4 December 24, 2011 • 12:16 2.4K This page is only available to Patreon patrons! To view this content, you must be a member of Simon Cummings's Patreon at £5 or more Unlock with Patreon choirMorten LauridsenUSA 0 comments 0 FacebookTwitterPinterestRedditEmail