The Beethoven/Schoenberg project, which will continue through 2006-07, will include six programs in 2005-06. Next season's concerts include performances of Beethoven's Missa solemnis with Deborah Voigt, Lorraine Hunt Lieberson, Ben Heppner, and Ren_ Pape; Schoenberg's Gurrelieder with Karita Mattila, Hunt Lieberson, and Paul Groves; Beethoven's Triple Concerto, Symphony No. 1, and Symphony No. 7; and Schoenberg's Five Pieces for Orchestra, Variations for Orchestra, and the symphonic poem Pelleas und Melisande. Finally, the BSO will pair Schoenberg's Chamber Symphony No. 1 with Beethoven's Ninth Symphony.

New commissioned works scheduled for 2005-06 include Elliott Carter's Three Illusions for Orchestra, Peter Lieberson's Neruda Songs (which is a co-commission with the Los Angeles Philharmonic and will be premiered in Los Angeles this spring); a new work by Leon Kirchner; and a new work for cello and orchestra by Osvaldo Golijov, performed by Yo-Yo Ma.

Other 125th-anniverary commissions planned for later seasons include works by Harrison Birtwistle, William Bolcom, Henri Dutilleux, John Harbison, Gy‹rgy Kurtšg, and Kaija Saariaho.

Levine will lead his first BSO tour as music director in March 2006. The tour, to feature Neruda Songs and Three Illusions for Orchestra, will include stops at Carnegie Hall and in Chicago, Newark, Philadelphia, and Washington.

Guest conductors in 2005-06 include Colin Davis, Christoph von Dohnšnyi, Bernard Haitink (making his first appearances as conductor emeritus), Kurt Masur, David Robertson, and Robert Spano. Among the soloists on the schedule are pianists Richard Goode and Piotr Anderszewski and violinists Joshua Bell and Gil Shaham.