The program is also to be presented tonight at 8 at Bard College, Route 9G, Annandale-on-Hudson, N.Y., (845) 758-7425.

The Hudson Valley Chamber Music Circle, which presents important artists in interesting programs at Bard College, celebrates its 50th anniversary this season.

The program is also to be presented tonight at 8 P.M. at Bard College in Annandale-on-Hudson, N.Y., (914) -758-7425; tickets: $15; $10 for students and the elderly (Oestreich).

For the next two weekends, "Schoenberg and His World" will be presented during the 10th Bard Music Festival at Bard College; the festival features performances by a number of soloists and ensembles as well as panel discussions.

The program will also be presented tonight at 8 at Olin Hall, Bard College, Route 9G, Annandale-on-Hudson, N.Y., (845)758-7425, $25; $20 for students and 62+.

Besides its regular offerings in Great Barrington and the concerts it has presented for several years at Bard College in Annandale-on-Hudson, the festival has established a modest New York presence.

Leon Botstein has examined the music of Richard Strauss from many angles, both at the annual summer festival he presents at Bard College and in his concerts with the American Symphony Orchestra.

The Hudson Valley Chamber Orchestra presents the first of four paired concerts in its New Horizon series, under the principal conductor, Leon Botstein, Friday at Bard College in Annandale-on-Hudson and Saturday at Vassar in Poughkeepsie.

The program will be presented tonight at 8 at Bard College in Annandale-on-Hudson, N.Y., (914) 758-7425.