Two operas never before performed at Glyndebourne will headline the 2003 festival season.

Wagner's Tristan Und Isolde will open the festival on May 19 in a production conducted by Jiri Belohlavek and directed by Nikolaus Lehnhoff.

Johann Strauss's Die Fledermaus, conducted by Vladimir Jurowski and directed by Stephen Lawless, will run for 14 days later in the season.

Another new production will be Mozart's Idomeneo, conducted by Simon Rattle and directed by Peter Sellars.

There are also three "revival"productions - Puccini's La Boheme, Mozart's Le Nozze Di Figaro and Handel's Theodora.

The festival will run from May 19 to August 31 with 76 performances.

Glyndebourne's resident orchestra, the London Philharmonic, plays for the 40th consecutive year for four of the productions, while the orchestra of the Age of Enlightenment, Glyndebourne's associate orchestra in its 12th festival, plays for Idomeneo and Theodora.

Many artists will make their house debut during the season.

Nina Stemme will sing Isolde, Magdalena Kozena will sing Idamante in Idomeneo and Pamela Armstrong sings Rosalinde in Die Fledermaus.

Elizabeth Norberg-Schultz is Mimi in La Boheme alongside Rolando Villazon who makes his British debut as Rodolfo.