Highlights: London Symphony Orchestra under Michael Tilson Thomas in Beethoven's Third Piano Concerto with Rudolf Buchbinder, pianist the Stockholm Chamber Orchestra under Franz Welser-Most in Arnold Schoenberg's ''Verklarte Nacht,'' and the Norrkoping Symphony in Bruckner's Fourth Symphony.Ensembles: Czech Philharmonic and Chorus, Gustav Mahler Youth Orchestra, London Classical Players, Mozarteum Orchestra, I Solisti Veneti, Franz Schubert Quartet, Haydn Trio, German Chamber Philharmonia, Berlin Chamber Soloists, Artis Quartet of Vienna and Collegium Musicum of Prague.Premieres: Martha Graham Dance Company with the European premiere of ''Night Chant,'' set to the music of Carlos Nakai the cellist Heinrich Schiff and the pianist Olli Mustonen in ''Die Schoene Sennin,'' Fantasies for Cello and Piano by Wilhelm Killmayer Friedrich Cerha's ''Monumentum,'' performed by the Austrian Radio Symphony and Chorus and Arnold Schoenberg Chorus of Vienna, conducted by Michael Gielen Helmuth Rilling conducting the Mozarteum Orchestra and Gaechinger Church Choir of Stuttgart in the chorus and interlude from Mozart's ''Thamos, King of Egypt.''.

Ekker, with Kurt Pahlen conducting the Villach Music School Orchestra.

Other highlights: a musical for robots and children called ''Quirl'' (a kitchen utensil for stirring) by Andreas Kach and Ernst A.

Schubert's Stabat Mater in F Major will be performed by the Chorus and Orchestra of Birnau Basilica.Other ensembles: Vienna Philharmonic, Cleveland Symphony, Chamber Orchestra of Europe, Bochum Symphony, Ensemble Wien-Berlin, Hagen Quartet, Concentus Musicus, Alban Berg Quartet, Vienna String Sextet, Basler Madrigalisten and Camerata Zurich.

Boston youth philharmonic orchestra