Soprano Hildegard Behrens, one of the finest Wagnerian performers of her generation, has died while traveling in Japan. She was 72.

Jonathan Friend, artistic administrator of the Metropolitan Opera in New York, said Tuesday in an e-mail message to opera officials that Behrens felt unwell while traveling to a festival near Tokyo. She went to a Tokyo hospital, where she died of an apparent aneurysm.

Friend's e-mail was shared with AP by Jack Mastroianni, director of IMG Artists.