1. MS Mus. 1804/1/7/4/2 Reference (shelfmark): MS Mus. 1804/1/7/4/2 Title: Thea Musgrave: 'Mary, Queen of Scots', opera. Full score. Act 1, scene 3 (Ballroom scene) Collection Area: Music Collections Languages: English Date Range: 1973? Extent: 1 volume