Tonight at 8 o'clock in Sanders Theatre the Boston Symphony Orchestra will appear in concert under the direction of Dr. Serge Koussevitsky. The program is as follows:

Symphony No. 6 in F major, Opus No. 68, Pastoral.--Beethoven.

Apollon Musagete Ballet--Stravinsky.

Prelude and Liebestod form Tristan and Isoide--Wagner.