Word puzzler

Can you identify the words missing from the operas, or group of operas, listed below? Words are written horizontally or vertically, but not diagonally or backwards.

THE CLUES

1. The --- of Spades 2. Bluebeard's --3. --- Godunov 4. The Magic --5. Dido and --6. The --- of the Nibelungen 7. The --- of Seville 8. --- Miller 9. Peter --10. --- Di

Lammermoor