Details of the Metropolitan Opera's first Kennedy Center appearances were announced yesterday. The company will perform here from April 21 through 26, immediately following the closing of its regular New York season. It will not appear at Wolf Trap Farm Park this summer as it has for the past several years.

Tenor Luciano Pavarotti and baritone Sherill Milnes will both sing twice during, the week, as will soprano Gilda Cruz-Romo, who sang this fall on the Met's opening night. Tenor Micolai Gedda will make a single appearance.The company's music director, James Levine, will conduct two of the seven performances. The week will close with the first Washington performance of Benjamin Britten's "Billy Budd."

Details of the week:

Monday, April 21: Donizetti: L'Elisir d'Amore with Blegen, Pavarotti, Sereni. Conducting: Rescigno.

Tuesday, April 22: Verdi: Otello, with Cruz-Roma, Cassilly, Milnes.

Conducting: Levine.

Wednesday, April 23: Tchaikovsky: Eugen Onegin, with Kubiak, Devlin, Gedda, Conducting: Tchakarov.

Thursday, April 24: Verdi: Un Ballo in Maschera, with Cruz-Romo, Blegen, Pavarotti, Berini, Quilico. Conducting: Veltri.

Friday, April 25: Verdi: Otello, with Hazzan, Cassilly, Milnes. Conducting: Levine.

Saturday, April 26, matinee: Humperdinck: Hansel and Gretel, with Robinson, Boozer. Conducting: Simmons.

Saturday, evening: Britten: Billy Budd, with Stillwell, Cassilly, Morris. Conducting: Leppard.