1. MS Mus. 1487 Reference (shelfmark): MS Mus. 1487 Title: Draft libretto and score of episodes 1 and 2 Scope & Content: ff. 2-13. Draft libretto; - ff. 14-102. Score of Episodes 1 and 2. Collection Area: Music Collections Languages: English Date Range: [1999] Extent: ff. 102.