In what year was the album “Eternal” released by Montserrat Caballé?

In what year was the album “Eternal” released by Montserrat Caballé?: The album “Eternal” was released in 1991 by Montserrat Caballé.
What is the most successful song from the album “Eternal” by Montserrat Caballé?: “Hijo de la luna” is the biggest hit from the album “Eternal” by Montserrat Caballé.

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