LC Authority and Vocabulary Service is under maintenance!
While the ID.LOC.GOV service is under maintenance, all possible relationships between resources may not be expressed.
Full service will be restored as soon as possible. Thank you for your patience.
found: Verdi, G. Un ballo in maschera. [Phonodisc] 1967.
found: New Grove dict. of opera (Grist, Reri; b. 2-29-32, New York; American soprano)