1. Add MS 50980-50984 Reference (shelfmark): Add MS 50980-50984 Title: B. BALLETS AND INCIDENTAL MUSIC Collection Area: Music Collections Languages: English Date Range: [1912-1931] Extent: 5 items
2. Add MS 50985-50996 Reference (shelfmark): Add MS 50985-50996 Title: C. ORCHESTRAL WORKS Collection Area: Music Collections Languages: English Date Range: [1892-1952] Extent: 12 items
3. Add MS 50997-51001 Reference (shelfmark): Add MS 50997-51001 Title: D. CONCERTOS Collection Area: Music Collections Languages: English Date Range: [1936-1943] Extent: 5 items
4. Add MS 51002-51005 Reference (shelfmark): Add MS 51002-51005 Title: E. CHAMBER MUSIC Collection Area: Music Collections Languages: English Date Range: [1920-1948] Extent: 4 items
5. Add MS 51006-51012 Reference (shelfmark): Add MS 51006-51012 Title: F. VOCAL MUSIC Collection Area: Music Collections Languages: English Date Range: [1895-1948] Extent: 7 items