Agree with VIN, the only way to appreciate operas in a foreign language, is to read the story beforehand. On-line translations are not very accurate, and poetry is lost.

Also, give a chance to artists to show you the full spectacle, and attend Opera at the Theatre. Listen to the natural sound without a carton cone vibrating in a plastic cabinet. Hear them breath, sigh, laugh and cry, see how the whole room elevates to heaven and falls to hell.

And see that guy hidden in the choir, perhaps you'll see me, happy as a clam, wishing to live long enough to die some day in a stage.

Un abrazo,
Andrés