The series of summer organ concerts in Røros is now in its 22nd year. This year each programme will include pieces from the recently discovered CAUMONT MANUSCRIPT of 1707. This is a volume containing 111 works by early french masters including Boyvin, Nivers, LeBègue, Raison, and Thomelin. Over 70% of the pieces are previously unknown and are an exciting new find for organists and musicologists. This is the first performance of this music in over 300 years and comes before the upcoming publication of the entire manuscript.