1. Add MS 64524-64565 Reference (shelfmark): Add MS 64524-64565 Title: Works with opus number Collection Area: Music Collections Languages: English Date Range: [1938-1983] Extent: 42 items
2. Add MS 64566-64572 Reference (shelfmark): Add MS 64566-64572 Title: Instrumental ensembles without definitive opus number Collection Area: Music Collections Languages: English Date Range: [1937-1982] Extent: 7 items