Haarlemse Orgelmaand 1970 - Various (Haarlem Betsuur Stichting Internationaal Orgelconcours, 1970)
Keywords: Müller, Christian -- 1690-1763; Schnitger, Arp -- 1648-1719; Performing pitch; Concert pitch; Keyboard; Range; Wind pressure; Concert; Haarlem (Netherlands)